Angewandte Chemie - International Edition p. 12580 - 12584 (2019)
Update date:2022-08-03
Topics:
Fan, Xuanzi
Xiao, Pin
Jiao, Zeqing
Yang, Tingting
Dai, Xiaojuan
Xu, Wengang
Tan, Jin Da
Cui, Ganglong
Su, Hongmei
Fang, Weihai
Wu, Jie
Chlorosilanes are versatile reagents in organic synthesis and material science. A mild pathway is now reported for the quantitative conversion of hydrosilanes to silyl chlorides under visible-light irradiation using neutral eosin Y as a hydrogen-atom-transfer photocatalyst and dichloromethane as a chlorinating agent. Stepwise chlorination of di- and trihydrosilanes was achieved in a highly selective fashion assisted by continuous-flow micro-tubing reactors. The ability to access silyl radicals using photocatalytic Si?H activation promoted by eosin Y offers new perspectives for the synthesis of valuable silicon reagents in a convenient and green manner.
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