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. 6933-47-7, name is Methyl 4-amino-2-methylbenzoate, A new synthetic method of this compound is introduced below., category: esters-buliding-blocks
General procedure: To a stirred solution of tert-butyl 2-formyl-6-azaspiro[3.4]octane-6-carboxylate (CAS: 203662-55-9) (225 mg, 1.0 mmol) and 2-(3-aminopheny])acetonitrile (CAS: 4623-249) (136 mg, 1.03 mmol) in MeOH (10 mL) at room temperature was added decaborane (43 mg, 0.35 mmol). The reaction mixture was stirred at room temperature overnight. The reaction mixture was concentrated. The residue was purified bysilica gel chromatography eluted with PE/EtOAc(3/1,v/v) to afford intermediate 119 (340 mg, 99% yield) as a yellow solid. Intermediate 178 was prepared via an analogous reaction protocol as described forthe preparation of intermediate 119, starting from the respective starting materials.
The synthetic route of 6933-47-7 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; JANSSEN PHARMACEUTICA NV; JOHNSON & JOHNSON (CHINA) INVESTMENT LTD.; DAI, Xuedong; QUEROLLE, Olivier Alexis Georges; KROSKY, Daniel Jason; CAI, Wei; FU, Liqiang; KONG, Linglong; LIU, Yingtao; WAN, Zhao-Kui; HERKERT, Barbara; PANDE, Vineet; EDWARDS, James Patrick; PATRICK, Aaron Nathaniel; ANGIBAUD, Patrick Rene; PONCELET, Virginie Sophie; (488 pag.)WO2019/120209; (2019); A1;,
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