Cyclobutene derivatives from addition of α-halogeno electrophilic olefins to ynamines
作者:J.Ø. Madsen、S.-O. Lawesson
DOI:10.1016/s0040-4020(01)97530-1
日期:1974.1
cycloaddition and subsequent allylic isomerization is formulated on the basis of stereochemical and kinetic data. The halogen substituents of the cyclobutene derivatives are stereospecifically displaced by the OH or the OEt groups in solvolytic reactions, with retention of configuration. Methylenecyclobutene derivatives are obtained from the 3-methylcyclobutenes by elimination of hydrogen halide with
Elimination reaction over solid supports under microwave irradiation: Synthesis of functionalized alkenes
作者:Aicha Saoudi、Jack Hamelin、Hadj Benhaoua
DOI:10.1016/s0040-4039(98)00690-x
日期:1998.6
Treatment of 1,2-dibromocompounds with KF supported on alumina, or bentonite/Et3N undermicrowaveirradiation leads to an elimination reaction which produces functionalized alkenes in fair yields.
在微波辐射下,用负载在氧化铝上的KF或膨润土/ Et 3 N处理1,2-二溴化合物会导致消除反应,从而以合理的收率生产官能化的烯烃。