photochemical reaction of disilirane with unsaturatedcompounds such as nitrile, ketone and aldehyde in the presence of C60 with a halogen lamp (cutoff <400 nm) affords the corresponding adducts of disilirane and unsaturatedcompounds as bis-silylated products. The experimental results by using laser flash photolysis technique confirm the formation of the adducts via a photoinduced electrontransfer process
在C 60存在下,在卤素灯(截止值<400 nm)下,二硅氮烷与不饱和化合物(如腈,酮和醛)的光化学反应提供了双硅烷基化产物的二硅氮烷和不饱和化合物的相应加合物。使用激光闪光光解技术的实验结果证实了在1至3 C 60 *之间通过光致电子转移过程形成了加合物。在该双硅烷化反应中,C 60用作敏化剂。
[GRAPHICS]The photochemical reaction of disilirane with C-60 in benzonitrile affords the adduct of disilirane and benzonitrile as a bis-silylated product. In this reaction, C-60 serves as a sensitizer. The results are reasonably accounted for by a novel metal-free bis-silylation of an unsaturated compound via a photoinduced electron-transfer process.