Reduction of CO2 into Methylene Coupled with the Formation of C-S Bonds under NaBH4/I2 System
A selective four-electron reduction of CO2 with thiophenol using NaBH4 as a reductant is described to access dithioacetals. This reaction provides a novel synthetic method for the highly selective conversion of CO2 into methylene, and a new access to molecular structures via formation of C-S bonds using CO2 as the C1 source.
Guo, Zhiqiang,Zhang, Bo,Wei, Xuehong,Xi, Chanjuan
supporting information
p. 6678 - 6681
(2018/10/24)
Cs2CO3-promoted methylene insertion into disulfide bonds using acetone as a methylene source
An efficient halogen-free Cs2CO3-promoted methylene insertion into disulfide bonds has been achieved using acetone as a methylene source under mild conditions. This method provides a convenient and practical route to dithioacetals in up to 96% yield with good functional group compatibility.