作者:Richard D Chambers、Alan F Gilbert、Richard L Powell
DOI:10.1016/s0022-1139(00)00250-5
日期:2000.7
The cycloaddition reaction of trifluoroethene with furan and a number of derivatives to give the unreported 1,1,2-trifluoro-7-oxa-bicyclo[2.2.1]hept-4-ene, and derivatives has been investigated. Reactions were carried out in stainless steel autoclaves at 200°C under autogenous pressure using an excess of trifluoroethene. Reactions were found to proceed with furan and derivatives with methyl groups
已经研究了三氟乙烯与呋喃和许多衍生物的环加成反应,得到未报告的1,1,2-三氟-7-氧杂双环[2.2.1]庚-4-烯及其衍生物。使用过量的三氟乙烯,在自生压力下于200℃在不锈钢高压釜中进行反应。发现用呋喃和在2和/或5位具有甲基的衍生物进行反应。然而,在这些位置上的吸电子取代基阻止了反应。尝试使用多种碱对1,1,2-三氟-7-氧杂双环[2.2.1]庚-4-烯进行脱氟化氢反应没有反应,但是使用LDA可以制备25%收率的2, 3-二氟苯酚。