Regiocontrolled cyclisation of acetylenic ketones. First example of selective desilylation of a triple bond in the presence of a silyl enol ether.
作者:J. Drouin、M.A. Boaventura
DOI:10.1016/s0040-4039(00)96421-9
日期:1987.1
The thermal cyclisation of the butynylbicyclooctanone is non regiospecific, and leads to products having a propellane or a cedrane skeleton. Conditions allowing exclusive formation of either type of products are given.
丁炔基双环辛酮的热环化是非区域特异性的,并导致产生具有丙炔或a烷骨架的产物。给出了允许任意形成任何一种产品的条件。