reacted with ketones in a two step process, the first stage being reversible. Methyl vinyl sulfides are formed only when the elimination step was rapid. When the second step occurred at a slow rate. the sequence required the use of boron trifluoride etherate for completion. New methyl vinyl sulfides were prepared by reaction with various ketones, including enolisable and bulky compounds.
甲
硫基二苯基氧化膦碳负离子1a在两步过程中与酮反应,第一步是可逆的。
甲基乙烯基硫醚仅在快速消除步骤时形成。当第二步以缓慢的速度发生时。该序列需要使用
三氟化硼醚化物来完成。通过与各种酮反应可制得新的甲基
乙烯基硫化物,其中包括可胶结的大体积化合物。