Synthetic strategies to epoxydiynes and a key synthon of the neocarzinostatin chromophore
作者:Olivier Thominet、James R. Baker、Hugh Britton、Zac C. Etheridge、Marco G. Soscia、Stephen Caddick
DOI:10.1039/b711196g
日期:——
towards the synthesis of epoxydiynes which represent an unusual structural feature of the neocarzinostatinchromophore. A number of different routes to these epoxydiynes have been explored with varying success. Ultimately a concise and convergent approach was developed, which involved the addition of an allenyl zinc bromide to propargylic ketones/aldehydes followed by epoxide formation. This new protocol