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【结 构 式】

【分子编号】69260

【品名】1,4-butanediol monobutyrate;4-hydroxybutyl butyrate

【CA登记号】 

【 分 子 式 】C8H16O3

【 分 子 量 】160.21324

【元素组成】C 59.98% H 10.07% O 29.96%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(XI)

Intermediates (III), (IVa) and (IVb) can be synthesized as follows. Esterification of butyric acid (X) with 1,4-butanediol (V) in the presence of TsOH·H2O in refluxing n-octane gives 1,4-butanediol monobutyrate (XI), which is then nitrated with HNO3/H2SO4 in CH2Cl2, yielding nitrate ester (XII). Selective saponification of the carboxylate of ester of (XII) with NaOH in MeOH/H2O, followed by acidification with H2SO4, furnishes 4-hydroxybutyl nitrate (III) .

1 Hack, A., Weingartner, G., Kramer, M. (NicOX SA). Process for preparing 1,4-butanediol mononitrate. WO 2009000723.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(III) 69253 4-hydroxybutyl nitrate   C4H9NO4 详情 详情
(V) 43160 1,4-butanediol;1,4-Dihydroxybutane;1,4-Butylene glycol;Tetramethylene glycol 110-63-4 C4H10O2 详情 详情
(X) 53267 Butanoic acid; Butyric acid; N-Butanic acid; N-Butanoic acid; n-Butyric acid; N-Ethylacetic acid; N-Propanecarboxylic acid; N-Propylformic acid 107-92-6 C4H8O2 详情 详情
(XI) 69260 1,4-butanediol monobutyrate;4-hydroxybutyl butyrate   C8H16O3 详情 详情
(XII) 69261 4-(nitrooxy)butyl butyrate   C8H15NO5 详情 详情
Extended Information