Category: 1779-49-3

《Molecular modeling insights in the extraction of benzene from hydrocarbon stream using deep eutectic solvent》 was published in Journal of Molecular Liquids in 2020. These research results belong to Kumar, Nikhil; Naik, Papu Kumar; Banerjee, Tamal. Application In Synthesis of Methyltriphenylphosphonium bromide The article mentions the following:

The present study aims to elucidate the mol. insights into the extraction of benzene from hydrocarbon mixture using a phosphonium based deep eutectic solvent (DES). The prepared DES consists of the hydrogen bond acceptor (HBA; methyltriphenylphosphonium bromide, MTPB) and hydrogen bond donor (HBD; ethylene glycol) at a molar ratio of 1:4. The at.-level classical mol. dynamic (MD) simulation technique is then employed to investigate the equilibrium phase behavior of the DES + benzene + hexane ternary system with respect to solvent rich and hydrocarbon-rich phases. To observe the effect of feed concentration, three different concentrations were considered from the reported exptl. runs, which gave high selectivity and distribution coefficient values. The non-bonded interaction energies of different species and the structural properties such as radial distribution functions, spatial distribution functions (SDFs), and the average number of hydrogen bonds are then computed. It is found that the cation within the HBA, namely, MTP, initiates interactions with benzene when compared to HBD or its anion (Br). MTP and ethylene glycol both are seen to contribute to the hydrogen bonding with benzene, which results in a higher exptl. solubility value. The calculations of SDFs further reveal the fact that the benzene mols. are evenly distributed around the active sites of the MTP mol., whereas hexane mols. are found to be distributed around the non-active sites of the DES. In order to validate the simulation procedure, the concentration in both the phases was compared with the existing LLE exptl. results. In the penultimate part, 2D 1H-13C Heteronuclear Multiple Bond Correlation (HMBC) NMR is performed for investigating and confirming the hydrogen bonding interactions among components of DES and benzene. The results came from multiple reactions, including the reaction of Methyltriphenylphosphonium bromide(cas: 1779-49-3Application In Synthesis of Methyltriphenylphosphonium bromide)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is used for methylenation through the Wittig reaction. It is utilized in the synthesis of an enyne and 9-isopropenyl -phenanthrene by using sodium amide as reagent. Application In Synthesis of Methyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Physiochemical Properties and Molecular Dynamics Simulations of Phosphonium and Ammonium Based Deep Eutectic Solvents》 were Naik, Papu Kumar; Paul, Sandip; Banerjee, Tamal. And the article was published in Journal of Solution Chemistry in 2019. HPLC of Formula: 1779-49-3 The author mentioned the following in the article:

Deep eutectic solvents (DES) are considered as second-generation ionic liquids and are used in many applications such as separation, extraction and electrochem. In the current work, a set of four DES is synthesized by mixing a hydrogen bond donor (HBD) (ethylene glycol/glycerol) with a quaternary ammonium or phosphonium salt or the hydrogen bond acceptor (HBA). Here the HBA, namely methyltriphenylphosphonium bromide and tetrabutylammonium bromide (TBAB), were mixed with the HBD in a molar ratio of 1:4. Fourier transform IR and thermogravimetric anal. anal. were then carried out to understand the functional groups along with their thermal stability. NMR anal. was also used to validate the molar ratio of 1:4 in solution Thereafter, the four DESs were simulated with mol. dynamics simulations to evaluate and measure the pure component properties of these solvents at room temperature Thermodn. insights such as non-bonded interaction energies, hydrogen bonds, coordination number and radial distribution functions were also discussed to understand their atomistic interactions involved in the eutectic mixtures In addition to this study using Methyltriphenylphosphonium bromide, there are many other studies that have used Methyltriphenylphosphonium bromide(cas: 1779-49-3HPLC of Formula: 1779-49-3) was used in this study.

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.HPLC of Formula: 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Recommanded Product: Methyltriphenylphosphonium bromideIn 2022 ,《A Simple and Feasible Synthetic Strategy towards Poly(4-thiostyrene)》 appeared in Macromolecular Chemistry and Physics. The author of the article were Li, Jincai; Richardson, Joseph J.; Ejima, Hirotaka. The article conveys some information:

Poly(4-thiostyrene), a historically challenging to synthesize polymer, is synthesized herein via a feasible three-step protocol. Based on the newly developed protection-deprotection strategy, the precursor polymer containing thiomethyl groups is deprotected using Li/naphthalene to yield poly(4-thiostyrene) after acidification. This newly developed procedure is crucial for preventing crosslinking of the thiol groups and therefore the resulting polymer is soluble in common organic solvents (e.g., chloroform, tetrahydrofuran) and can be stored long-term, which has been challenging to accomplish over the past 60 years. The successful synthesis is confirmed by various characterization techniques including NMR, Fourier-transform IR spectroscopy, and Raman anal., which collectively are new and useful data that have generally been unavailable in previous reports. This work provides a robust approach for synthesizing this promising polymer and offers a new route to investigate thiol-containing polymers. In the experiment, the researchers used many compounds, for example, Methyltriphenylphosphonium bromide(cas: 1779-49-3Recommanded Product: Methyltriphenylphosphonium bromide)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Recommanded Product: Methyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Selective synthesis of N-protected exo-spiro[oxirane-3,2′-tropanes]》 were Mandzhulo, Aleksandr; Vashchenko, Iryna; Gerasov, Andrii; Vovk, Mykhaylo; Rusanov, Eduard; Fetyukhin, Volodymyr; Lukin, Oleg; Shivanyuk, Alexander. And the article was published in Organic Chemistry Frontiers in 2019. HPLC of Formula: 1779-49-3 The author mentioned the following in the article:

N-Cbz- and N-Boc-protected exo-spiro[oxirane-3,2′-tropanes] were obtained in 62-75% yield via either epoxidation or hydroxybromination/dehydrobromination of the corresponding alkenes. Deprotection of the Cbz-exo-epoxide afforded the corresponding tropane containing an exo-oxirane fragment and a secondary amino group. In the experimental materials used by the author, we found Methyltriphenylphosphonium bromide(cas: 1779-49-3HPLC of Formula: 1779-49-3)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.HPLC of Formula: 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Reaction of Vinyl Aziridines with Arynes: Synthesis of Benzazepines and Branched Allyl Fluorides》 was published in Chemistry – A European Journal in 2020. These research results belong to Kaldas, Sherif J.; Kran, Eva; Mueck-Lichtenfeld, Christian; Yudin, Andrei K.; Studer, Armido. Recommanded Product: 1779-49-3 The article mentions the following:

The cycloaddition between vinyl aziridines I [R1 = benzyl, cyclohexyl, (4-methoxyphenyl)methyl; R2 = H, Me; R3 = H, Me; R4 = H, Ph] and arynes R5OS(O)2Ar (R5 = 2-iodophenyl, 4-fluoro-3-iodophenyl, 2-iodo-6-methoxyphenyl, etc.; Ar = trifluoromethyl, 4-chlorophenyl, 4-fluorophenyl, 4-iodophenyl) was reported. Depending on the reaction conditions and the choice of the aryne precursor, the aziridinium intermediate can be trapped through two distinct mechanistic pathways. The first one proceeds through a formal [5+2] cycloaddition to furnish valuable multi-substituted benzazepines II (R6 = H, 6-OMe, 6,8-(CH3)2, 6-F, etc.). In the second pathway, the aziridinium is intercepted by a fluoride ion to afford allylic fluorides R7N(R8)CH(R9)CH(F)C(=CH2)R10 (R7 = Ph, 3-methoxyphenyl, 3,4-difluorophenyl, etc.; R8 = benzyl, cyclohexyl, (4-methoxyphenyl)methyl; R9 = H, Me; R10 = H, Me) in good yields. Both reactions proceed stereospecifically and furnish enantiopure benzazepines II and allylic fluorides. After reading the article, we found that the author used Methyltriphenylphosphonium bromide(cas: 1779-49-3Recommanded Product: 1779-49-3)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is used for methylenation through the Wittig reaction. It is utilized in the synthesis of an enyne and 9-isopropenyl -phenanthrene by using sodium amide as reagent. Recommanded Product: 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Related Products of 1779-49-3In 2019 ,《A quantitative prediction of the viscosity of amine based DESs using Sσ-profile molecular descriptors》 appeared in Journal of Molecular Structure. The author of the article were Benguerba, Yacine; Alnashef, Inas M.; Erto, Alessandro; Balsamo, Marco; Ernst, Barbara. The article conveys some information:

In recent years, the preparation of deep eutectic solvents (DESs) using amines as H bond donors (HBD) was reported by several research groups. One of the potential use of this type of DESs is in the field of CO2 capture, where the viscosity of the solvent before and after the absorption is of paramount importance. Since the number of possible combinations of DESs is huge, a math. model for the predicting of the viscosity of DESs at different temperatures is very important. A new math. model for the prediction of amine-based DESs viscosities using the quant. structure property relations (QSPR) approach is presented. A combination of multilinear regression (MLR) and artificial neural networks (ANN) methods is used for the development of the model. A data set of 108 exptl. measurements of viscosity of 5 amines-based DESs, taken from the literature, is used for the development and subsequent verification of the model. The more appropriate model is determined by a dedicated statistical anal., in which the most significant descriptors are preliminary determined The proposed models are able to predict the DESs viscosities with very high accuracy, i.e. with a R2 value of 0.9975 in training and 0.9863 for validation using the ANN model and R2 value of 0.9305 for the MLR model. The retrieved model can be considered as a very reliable tool for the prediction of DESs viscosity when exptl. data are absent. In turn, this can provide useful guidelines for the synthesis of low-viscosity DESs able to minimize energy requirements associated to their processing (e.g. power required for pumps), thus fostering their industrial-scale implementation. In the experiment, the researchers used many compounds, for example, Methyltriphenylphosphonium bromide(cas: 1779-49-3Related Products of 1779-49-3)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Related Products of 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Hayyan, Adeeb; Hizaddin, Hanee F.; Abed, Khalid M.; Mjalli, Farouq S.; Hashim, Mohd Ali; Abo-Hamad, Ali; Saleh, Jehad; Aljohani, Abdullah S. M.; Alharbi, Yousef M.; Alhumaydhi, Fahad A.; Ahmad, Abdul Aziz; Yeow, Andrew T. H.; Aldeehani, Ahmaad Kadmouse; Alajmi, Falah D. H.; Al Nashef, Inas published an article in Biomass Conversion and Biorefinery. The title of the article was 《Encapsulated deep eutectic solvent for esterification of free fatty acid》.Recommanded Product: 1779-49-3 The author mentioned the following in the article:

Abstract: A novel encapsulated deep eutectic solvent (DES) was introduced for biodiesel production via a two-step process. The DES was encapsulated in medical capsules and were used to reduce the free fatty acid (FFA) content of acidic crude palm oil (ACPO) to the min. acceptable level (< 1). The DES was synthesized from methyltriphenylphosphonium bromide (MTPB) and p-toluenesulfonic acid (PTSA). The effects pertaining to different operating conditions such as capsule dosage, reaction time, molar ratio, and reaction temperature were optimized. The FFA content of ACPO was reduced from existing 9.61to less than 1under optimum operating conditions. This indicated that encapsulated MTPB-DES performed high catalytic activity in FFA esterification reaction and showed considerable activity even after four consecutive recycling runs. The produced biodiesel after acid esterification and alk. transesterification met the EN14214 international biodiesel standard specifications. To our best knowledge, this is the first study to introduce an acidic catalyst in capsule form. This method presents a new route for the safe storage of new materials to be used for biofuel production Conductor-like screening model for real solvents (COSMO-RS) representation of the DES using σ-profile and σ-potential graphs indicated that MTPB and PTSA is a compatible combination due to the balanced presence and affinity towards hydrogen bond donor and hydrogen bond acceptor in each constituent.Methyltriphenylphosphonium bromide(cas: 1779-49-3Recommanded Product: 1779-49-3) was used in this study.

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.Recommanded Product: 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Nickel/Photo-Cocatalyzed Asymmetric Acyl-Carbamoylation of Alkenes》 was written by Fan, Pei; Lan, Yun; Zhang, Chang; Wang, Chuan. Recommanded Product: 1779-49-3 And the article was included in Journal of the American Chemical Society in 2020. The article conveys some information:

An unprecedented asym. acyl-carbamoylation of pendant alkenes tethered on aryl carbamic chlorides with both aliphatic and aromatic aldehydes has been developed via the cooperative catalysis of a chiral nickel-PHOX complex and tetrabutylammonium decatungstate. This reaction represents the first example of merging hydrogen-atom-transfer photochem. and asym. transition metal catalysis in difunctionalization of alkenes. Using this protocol, a variety of oxindoles bearing a challenging quaternary stereogenic center are furnished under mild conditions in highly enantioselective manner. In the experiment, the researchers used Methyltriphenylphosphonium bromide(cas: 1779-49-3Recommanded Product: 1779-49-3)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Recommanded Product: 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Computed Properties of C19H18BrPIn 2020 ,《Fitting of experimental viscosity to temperature data for deep eutectic solvents》 was published in Journal of Molecular Liquids. The article was written by Al-Dawsari, Jiyad N.; Bessadok-Jemai, Abdelbasset; Wazeer, Irfan; Mokraoui, Salim; AlMansour, Muath A.; Hadj-Kali, Mohamed K.. The article contains the following contents:

Seven new deep eutectic solvents based on tetrabutylammonium bromide and tetraethylammonium p-toluene sulfonate were prepared and their viscosity determined between 298.15 and 323.15 K. The effect of temperature was modeled using an appropriate fitting procedure, proposed in this work, with a coefficient of determination R2 > 0.99 for all DES. The fitting procedure used of pre-existing exptl. data in which 70 DESs were collected from the literature and refined on the basis of R2 and root mean square error (RMSE); ∼10% of the data was rejected. Furthermore, about half of the refined data was fitted with a three-parameter Vogel-Fulcher-Tammann (VFT) equation with an R2 higher than 0.99. The remaining data were more adequately fitted with a two-parameter Arrhenius equation. The adjusted parameters of both models for 62 DESs were determined to estimate the viscosity. Based on R2, the VFT model was more accurate than the Arrhenius model. Moreover, addnl. in-lab experiments were performed for model validation at six temperatures In some cases, the exptl. measurements were different from those in the literature with an R2 below 0.95 indicating a large scatter in the viscosity data. Most of the highly viscous DESs considered in this study showed a rapid decay when temperature increases. Hence, the limitation of using these solvents for applications such as absorption could be overcome by operating at slightly higher temperature (i.e., 313.15 to 333.15 K). After reading the article, we found that the author used Methyltriphenylphosphonium bromide(cas: 1779-49-3Computed Properties of C19H18BrP)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Computed Properties of C19H18BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Total Synthesis of Viridin and Viridiol》 was written by Ji, Yang; Xin, Zhengyuan; He, Haibing; Gao, Shuanhu. Electric Literature of C19H18BrPThis research focused onviridin viridiol total asym synthesis cycloaddition radical cyclization. The article conveys some information:

The asym. total syntheses of (-)-viridin (I) and (-)-viridiol (II), antifungal metabolites, were achieved in 17 and 18 steps, resp., from a com. available starting material. An intramol. [3+2]-cycloaddition was applied to an easily available L-ribose derivative in order to construct the highly substituted D ring containing the key chiral cis-triol fragment. Co-catalyzed metal-hydride H atom transfer (MHAT) radical cyclization was utilized to form the C-ring and the all-carbon quaternary center at C-10. This convergent strategy provides a scalable approach to prepare viridin and viridiol for biol. studies. In the experiment, the researchers used Methyltriphenylphosphonium bromide(cas: 1779-49-3Electric Literature of C19H18BrP)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Electric Literature of C19H18BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary