Category: 135999-16-5

Li, Zhao-Ming; Shuai, Bin; Ma, Cong; Fang, Ping; Mei, Tian-Sheng published the artcile< Nickel-Catalyzed Electroreductive Syntheses of Triphenylenes Using ortho-Dihalobenzene-Derived Benzynes>, Product Details of C7H7BrO2, the main research area is triphenylene preparation regioselective; bromobenzene electroreductive reaction nickel catalyst.

Electrochem. nickel-catalyzed syntheses of triphenylenes e.g., I, by a reductive trimerization of ortho-dibromobenzenes e.g.., 5,6-dibromoindane or ortho-bromoarylsulfurofluoridates e.g., 2-bromo-4-fluorophenyl sulfurofluoridate, or by reductive cross-coupling of ortho-dibromobenzenes to 2,2′-diiodobiphenyls, were described. The former provides a practical means for the construction of triphenylene derivatives e.g., ,I in up to 87% isolated yield at room temperature For 1,2-dihalo-3-methylbenzenes and related ortho-trisubstituted substrates, trimerizations proceed with high substrate-controlled regioselectivity for the non-C3h sym. triphenylene isomer.

Chinese Journal of Chemistry published new progress about Cross-coupling reaction. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Product Details of C7H7BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Luening, Ulrich; Fahrenkrug, Frank published the artcile< Synthesis of concave 1,10-phenanthrolines by a combination of Suzuki coupling, ring closing metathesis and hydrogenation>, Safety of 2-Bromo-3-methoxyphenol, the main research area is concave phenanthroline preparation Suzuki ring closing metathesis hydrogenation.

A wide variety of saturated and unsaturated concave 1,10-phenanthrolines have been synthesized in good yields starting from dichloro-1,10-phenanthroline. In the three step synthesis, Suzuki couplings of bis-ortho-substituted boronic acids were used to introduce two different or two identical aryl bridgeheads into the 2- and 9-positions of the 1,10-phenanthroline (yields ≥70%). The resulting diaryl-1,10-phenanthrolines, substituted with alkenyloxy groups of different lengths, underwent ring closing metathesis reactions giving (bi)macrocyclic 1,10-phenanthrolines in yields of 73-96%. The alkene chains of (bi)macrocyclic 1,10-phenanthrolines were saturated using hydrogen and Pd/C giving concave 1,10-phenanthrolines in yields of 75-99%. For example, the ring closing metathesis of a [bis(hexenyloxy)phenyl][(butenyloxy)(hexenyloxy)phenyl]phenanthroline derivative (I) gave an intermediate (II) which was hydrogenated to give a desired concave phenanthroline derivative

European Journal of Organic Chemistry published new progress about Hydrogenation. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Safety of 2-Bromo-3-methoxyphenol.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yang, Lei; Xu, Wen-Qiang; Liu, Tao; Wu, Yichen; Wang, Biqin; Wang, Peng published the artcile< Concise synthesis and applications of enantiopure spirobiphenoxasilin-diol and its related chiral ligands>, Category: bromides-buliding-blocks, the main research area is enantiopure spirobiphenoxasilin diol phosphonate preparation crystal mol structure; chiral ligand enantiopure spirobiphenoxasilin diol preparation catalyst asym reaction.

The development of chiral architectures for chiral ligand and catalyst discovery is essential for asym. catalysis. Herein, authors report the concise synthesis of a Si-centered spirocyclic skeleton, spirobiphenoxasilin-diol (SPOSiOL), and its derived chiral ligands. Using the chem. resolution method, the optical SPOSiOL could be obtained in high yield on a gram scale. Preliminary studies indicated that this ligand scaffold has great potential in transition metal-catalyzed asym. reactions. This finding further highlights that the Si-centered spirocyclic scaffolds are of great value in asym. catalysis.

Chemical Communications (Cambridge, United Kingdom) published new progress about Crystal structure. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Stephenson, G. Richard; Roe, Caroline; Sandoe, Elizabeth J. published the artcile< Electrophilic C12 Building Blocks for Alkaloids: 1,1 Iterative Organoiron-Mediated Routes to (±)-Lycoramine and (±)-Maritidine>, SDS of cas: 135999-16-5, the main research area is lycoramine formal synthesis arylcyclohexadienyl iron intermediate; maritidine formal synthesis arylcyclohexadienyl iron intermediate.

Aryllithium reagents generated from protected 6-bromoguaiacol and 2-bromo-4,5-dimethoxybenzyl alc. derivatives were used to prepare ortho-substituted (1-arylcyclohexadienyl)iron(1+) electrophiles. These were treated with Na+[Me3SiCH2CH2O2CCHCN]- to build aryl-substituted quaternary centers in new examples of 1,1 iterative {[η4] → [η5]+ → [η4] → [η5]+ → [η4]} reaction sequences, which make use of the electrophilicity of the metal complex in two key carbon-carbon bond-formation steps. MOM protection of the guaiacol was better than SEM for access to the lycoramine skeleton, and TBDPS was best for maritidine. Decomplexation, hydrolysis, and cyclization completed formal total syntheses of the Amaryllidaceae alkaloids (±)-lycoramine and (±)-maritidine, establishing the compatibility of the organoiron method with the presence of ortho substituents on the aryl group, and nucleophile addition ipso to the substituted arene.

European Journal of Organic Chemistry published new progress about Alkaloids Role: SPN (Synthetic Preparation), PREP (Preparation). 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, SDS of cas: 135999-16-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Giles, Robin G. F.; Sargent, Melvyn V.; Sianipar, Hercules published the artcile< Regioselectivity in the reactions of methoxydehydrobenzenes with furans. Part 1. Reactions of 3-methoxydehydrobenzene and 3-(methoxycarbonyl)dehydrobenzene with 2-substituted furans>, Product Details of C7H7BrO2, the main research area is cycloaddition furan methoxydehydrobenzene regiochem; dehydrobenzene methoxy cycloaddition furan regiochem; ring cleavage dihydroepoxynaphthalene; naphthol alkoxy.

The isomer ratios for the cycloadducts obtained for the reaction of 3-methoxydehydrobenzene, generated from 2-amino-6-methoxybenzoic acid by aprotic diazotization, or from 2,3-BrMeOC6H3OSO2C6H4Me-4 by treatment with BuLi, and for the reaction of 3-(methoxycarbonyl)dehydrobenzene, generated from 2,6-(H2N)(MeO2C)C6H3CO2H by aprotic diazotization, with seven 2-substituted furans were obtained. These results are discussed in terms of an asynchronous, concerted, biradicaloid reaction pathway.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about Cycloaddition reaction. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Product Details of C7H7BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Meng; Chen, Jun; Chen, Zongjia; Zhong, Changxu; Lu, Ping published the artcile< Enantioselective Desymmetrization of Cyclobutanones Enabled by Synergistic Palladium/Enamine Catalysis>, Computed Properties of 135999-16-5, the main research area is cyclobutanone enantioselective desymmetrization palladium enamine catalyst; arylation; cyclobutanones; desymmetrization; palladium; synergistic catalysis.

The enantioselective intramol. α-arylation of cyclobutanones was established by combining palladium and enamine catalyst systems. Two different enantioselective control strategies were developed for cyclobutanone substrates bearing O- or N-tethered aryl bromides. Further synthetic applications are also reported.

Angewandte Chemie, International Edition published new progress about Arylation. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Computed Properties of 135999-16-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kuratsu, Masato; Kozaki, Masatoshi; Okada, Keiji published the artcile< 2,2':6',2'':6'',6-trioxytriphenylamine: Synthesis and properties of the radical cation and neutral species>, Reference of 135999-16-5, the main research area is trioxytriphenylamine synthesis property radical cation mol structure.

A flat radical: Oxygen-bridged triphenylamine 1 and its radical cation 2 were prepared The neutral compound has a shallow bowl structure, whereas the radical cation is planar. The properties of the highly stable radical cation were clarified; such compounds have potential applicability in electronic and magnetic materials.

Angewandte Chemie, International Edition published new progress about Crystal structure. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Reference of 135999-16-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Xu, Guangqing; Li, Minghong; Wang, Shouliang; Tang, Wenjun published the artcile< Efficient synthesis of P-chiral biaryl phosphonates by stereoselective intramolecular cyclization>, Quality Control of 135999-16-5, the main research area is chiral biaryl phosphonate stereoselective preparation; palladium catalyzed intramol asym cyclization diaryl bromo arylphosphonate; crystal mol structure biaryl phosphonate.

A series of P-chiral biaryl phosphonates were efficiently synthesized from diaryl 2-bromo arylphosphonates in high yields (up to 92%) and good enantioselectivities (up to 88% ee) through a palladium-catalyzed asym. cyclization with a novel P-chiral biaryl monophosphorus ligand. The P-chiral biaryl phosphonate can be rapidly transformed to both antipodes of a P-chiral dialkyl biaryl monophosphorus structure. The method provides a convenient access to various P-chiral biaryl monophosphines.

Organic Chemistry Frontiers published new progress about Crystal structure. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Quality Control of 135999-16-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yamano, Ryota; Hara, Jun; Murayama, Koichi; Sugiyama, Haruki; Teraoka, Kota; Uekusa, Hidehiro; Kawauchi, Susumu; Shibata, Yu; Tanaka, Ken published the artcile< Rh-Mediated Enantioselective Synthesis, Crystal Structures, and Photophysical/Chiroptical Properties of Phenanthrenol-Based [9]Helicene-like Molecules>, Application of C7H7BrO2, the main research area is enantioselective synthesis phenanthrenol based nonahelicene.

The enantioselective synthesis of phenanthrenol-based [9]helicene-like mols. has been achieved via the rhodium-mediated intramol. [2+2+2] cycloadditions of 3-phenanthrenol-linked triynes. Crystal structures and photophys./chiroptical properties of these [9]helicene-like mols. were compared with the corresponding [7]helicene-like mols.

Organic Letters published new progress about [2+2+2] Cycloaddition reaction. 135999-16-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2, Application of C7H7BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary