作者:Gerald Haaima、Mary-Jeanne Lynch、Anne Routledge、Rex T. Weavers
DOI:10.1016/s0040-4020(01)87132-5
日期:1991.1
The iodoalkylidene lactones formed by reaction of alkenes with acetylenic acids in the presence of N-iodosuccinimide and subsequent free radical cyclisation, can be de-iodinated photochemically or alkylated with lithiumdiorganocuprate reagents to yield a variety of α-alkylidene lactones.
Reaction of iodoalkylidene lactones with nucleophiles
作者:Gerald Haaima、Simon D. Mawson、Anne Routledge、Rex T. Weavers
DOI:10.1016/s0040-4020(01)87032-0
日期:1994.3
replacement of iodide from iodoalkylidene lactones provides a route to a variety of substituted alkylidene lactones. Trifluoromethyl, azido and phenylthio substituted systems are particularly accessible and reaction generally proceeds with predominant retention of the double bond configuration. A detailed GLC study of the stereoselectivity of phenylthiomethylene substitution is described. Reaction with