Reactions between (E)-5,5′-dimesitylbifuranylidenedione and the horner-wittig reagent
作者:Leslie Crombie、Belkys Darwish、Raymond C.F. Jones、Dane Toplis、Michael J. Begley
DOI:10.1016/s0040-4039(96)02137-5
日期:1996.12
(E)-5,5′-Dimesitylbifuranylidenedione 1 reads with the Horner — Wittig reagent by attack at one carbonyl giving 3; subsequent Michael addition of a second molecule of ylide leads to 4 by dehydrogenation, whilst 9 is a dimeric product.