One‐Step Synthesis of 2‐Aminothiazoline Derivatives Free of Lachrymatory Intermediates
作者:Atanas Bijev、Penka Prodanova
DOI:10.1080/00397910600907266
日期:2006.10.1
Abstract A convenient one‐step condensation of p‐R‐acetophenones, dioxane dibromide, and N,N′ dialkylthioureas was developed as a synthetic access to derivatives of 2‐amino‐1,3‐thiazoline, such as N‐[4‐(4‐R‐phenyl)‐3‐R1‐2,3‐dihydro‐1,3‐thiazol‐2‐yliden]‐N‐(R1)amine, where R=H, Br, NO2, or CH3O, and R1=CH3, CH3CH2, CH3CH2CH2CH2, or Ph. Unlike the routine syntheses of similar compounds based on lachrymatory
摘要 对 R-苯乙酮、二恶烷二溴化物和 N,N' 二烷基硫脲的方便一步缩合被开发作为合成 2-氨基-1,3-噻唑啉衍生物,如 N-[4-( 4-R-苯基)-3-R1-2,3-二氢-1,3-噻唑-2-亚基]-N-(R1)胺,其中R=H、Br、NO2或CH3O,R1= CH3、CH3CH2、CH3CH2CH2CH2 或 Ph。与基于催泪 ω-卤代苯乙酮的类似化合物的常规合成不同,一步法避免了制备和处理不方便的起始材料。基于起始对 R-苯乙酮的产率在 57-70% 的范围内。