mercaptan

Application of 2-(1,3-Dithian-2-ylidene)-3-oxobutanoic Acid as 1,3-Propanedithiol Equivalent in Thioacetalization Reactions;

2-(1,3-亚丙二硫)亚甲基-3-羰基丁酸作为硫醇替代试剂在缩硫醛/酮化反应中的应用

3-(1,3-Dithian-2-ylidene)-pentane-2,4-dione (1a) and 2-[2-chloro-1-(1-chlorovinyl)-allylidene]- 1,3-dithiane (1b), prepared readily and used conveniently as odorless and efficient 1,3-propanedithiol equivalent, were studied in thioacetalization reaction.

探讨了将3-[1,3]二噻-2-亚基-2,4-戊二酮及其衍生物作为一种无气味、易于制备、便于贮存、使用方便的1,3-丙二硫醇替代试剂在缩硫醛/酮化反应中的应用。

5 mol) at room temperature for 32 h to give 68% acetaldehyde butyl mercaptal.

5mol)为原料 ,溴化镁 ( 73g)为一次性催化剂 ,在乙醚( 1 0 0mL)中 ,室温条件下反应 32h ,经红外光谱、色谱、质谱、元素分析以及核磁共振谱检测 ,确证了产物为乙醛正丁硫醇缩硫醛 ,粗产率为 68%。