diethyl 2-(2-butynyl)-2-propylmalonate -Drug Synthesis Database

【结构式】

【分子编号】29429

【品名】diethyl 2-(2-butynyl)-2-propylmalonate

【CA登记号】

【分子式】C₁₄H₂₂O₄

【分子量】254.32628

【元素组成】C 66.12% H 8.72% O 25.16%

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：(III)

The alkylation of diethyl n-propylmalonate (I) with 1-bromo-2-butyne (II) in the presence of ethanolic NaOEt afforded the dialkyl malonate (III). Subsequent saponification of the ethyl esters of (III) with KOH gave the corresponding malonic acid (IV), which was decarboxylated at 180 C to yield the title compound.

参考文献中间体

合成目标

【1】 Hauck, R.-S.; Elmazar, M.M.E.; Nau, H.; Bojic, U.; VPA-analogous antiepileptics. DE 4231085; US 5786380; WO 9406743 .

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(I)	29427	diethyl 2-propylmalonate	2163-48-6	C₁₀H₁₈O₄	详情	详情
(II)	29428	1-bromo-2-butyne	3355-28-0	C₄H₅Br	详情	详情
(III)	29429	diethyl 2-(2-butynyl)-2-propylmalonate		C₁₄H₂₂O₄	详情	详情
(IV)	29430	2-(2-butynyl)-2-propylmalonic acid		C₁₀H₁₄O₄	详情	详情

Extended Information