The synthetic route of 61613-22-7 has been constantly updated, and we look forward to future research findings.
Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 61613-22-7, name is 2-Bromo-N-phenylaniline, A new synthetic method of this compound is introduced below., COA of Formula: C12H10BrN
To obtain the D1-DPS, compound 1a of the -OH formationreaction, and compound 2 of the cyclization reactionwere synthesized. Compound 1 (3 g, 12 mmol) was dissolvedin 50 ml of anhydrous tetrahydrofuran (THF) underhigh purity argon in a one neck round bottom flask. It wascooled to -78 C using solid carbon with acetone and then n-butyllithuim (2.5 M in cyclohexane, 24.7 mmol)was added dropwise slowly. Stirring was continued for 1 h before, cooling for 20-30 min. Then a solution of9-fluorenone (2.4 g, 13.3 mmol) in THF was added at-78 C under an argon atmosphere. The mixture wasstirred for 3 h in the same environment. The reaction was completed after the confirmation of compound 1a. Two side products and reactants appeared by TLC with a solutionof hexane and ethyl acetate (10:1). Additional quenching was not required. The mixture was then worked up using water and dichloromethane. The extracted organiclayer was dried by anhydrous MgSO4. For compound 2, compound 1a was placed in a oneneckround bottom flask, to which, chloroform (10 ml)and methane sulfonic acid (MSA, 5 ml) were added whilestirring at room temperature for 15 min. The progress ofthe reaction was monitored by TLC with a solution of hexane and ethyl acetate (5:1). The resulting mixture wasquenched by saturated aqueous NaHCO3 and extractedwith dichloromethane after the reaction completed. Th esolid product was recrystallized using chloroform and hexane.A slightly yellow solid product was obtained, whichwas then purified by column chromatography with hexane and ethyl acetate.Two intermediates, the DPS acceptor and the compound 2 donor, were reacted for D1-DPS by theBuchwald-Hartwig amination. Compound 2 (0.5 g,1.38 mmol), DPS (0.48 g, 1.38 mmol), pd(dba)2 (0.008 g,0.014 mmol), t-BuONa (0.27 g, 2.77 mmol), and triphenylphosphine(0.003 g, 0.011 mmol) showed high purityAr charging. Then toluene (20 ml) was added and refluxedfor 5 h at 115 C. Quenching was not required. The resultingmixture was worked up using ethyl acetate and water.A small amount of water in the extracted organic layerwas removed by MgSO4 and filtered with celite to removethe inorganic materials. Finally, column chromatographywas applied with hexane and dichloromethane.The white solid product was recrystallized byhexane.
The synthetic route of 61613-22-7 has been constantly updated, and we look forward to future research findings.
Reference:
Article; Lee, In Hye; Kim, Ki Ju; Kim, Young Kwan; Kim, Young Sik; Shin, Dong Myung; Journal of Nanoscience and Nanotechnology; vol. 19; 8; (2019); p. 4583 – 4589;,
Bromide – Wikipedia,
bromide – Wiktionary