Chemically labile stannylene-nitrogen bonds. The chemoselective and stereoselective synthesis of N,N-bis(trimethylsilyl)enamines and N,N-dialkylenamines
摘要:
The chemoselective reaction of Sn[N(TMS)2]2 with primary aldehydes leads to the stereoselective synthesis of trans-N,N-bis(trimethylsilyl)enamines. More reactive Sn(NR2)2 (R = Et, iPr, or piperidine) can be generated in situ and then treated with aldehydes or ketones to give trans enamines.
Bis(silyl)enamines or silylaziridines from the thermal reactions of azides with alkenylsilanes
作者:Alan R. Bassindale、Adrian G. Brook、Peter F. Jones、James A.G. Stewart
DOI:10.1016/s0022-328x(00)91930-2
日期:1978.5
When vinylsilanes and other alkenylsilanes react with silylazides the products were found to be bis(silyl)enamines, presumably arising from thermal rearrangement of intermediate triazolines. Other azides react with alkenylsilanes to give triazolines, which fail to rearrange to silylenamines, but which instead yield silylaziridines.