The title reaction was investigated at room temperature and under pressures ranging from 133 to 2660 Pa, using a conventional discharge flow reactor. 1-Butanethiol, butane, and 1-butene were the main products, whose compositions varied according to the pressure. In the reaction with deuterium atom, 1-butene was monodeuterated, while 1-butanethiol and butane were dideuterated. The following mechanism was proposed to account for the product compositions and their pressure dependencies as well as the deuterium labeling of the products.(CH2)4S+H → CH2(CH2)3SH (1)CH2(CH2)3SH+H → CH3CH2CH2CH2SH* (2)CH3CH2CH2CH2SH* → CH3CH2CH2CH2SH (3)→ CH3CH2CHCH2+H2S (4)→ CH3CH2CH2CH2+HS (5)CH3CH2CH2CH2+H → CH3CH2CHCH2+H2 (6)→ CH3CH2CH2CH3 (7)
标题反应在室温下以及133至2660 Pa的压力范围内进行了研究,使用了常规放电流反应器。1-
丁硫醇、
丁烷和1-
丁烯是主要产物,其组成随压力变化。在与
氘原子的反应中,1-
丁烯被单
氘化,而1-
丁硫醇和
丁烷则被双
氘化。提出了以下机制以解释产物组成及其压力依赖性,以及产物的
氘标记。(
CH2)4S + H → ( )3SH (1)
( )3SH + H → CH3 SH* (2)
CH3 SH* → CH3 SH (3)
→ CH3 CH +
H2S (4)
→ CH3 + HS (5)
CH3 + H → CH3 CH + H2 (6)
→ CH3 CH3 (7)