been achieved. The reaction occurs by S-directed C–H activation at the ortho position of the aryl ring, promoted by ruthenium, migratory insertion of the alkyne, 1,2-thio-Wittig rearrangement of the tert-butyl group and reductive elimination by C–S coupling between the resulting anionic sulfide and the vinylic carbon.
通过Ru(II)催化的苄基(叔丁基)
硫醚与内部
炔烃的氧化偶合,已经完成了1 H-异
硫杂
环庚烯的合成。反应通过芳基环邻位的S定向C–H活化,
钌促进,
炔烃的迁移插入,叔丁基的1,2-
硫代-维蒂希重排以及C–的还原消除而发生所得的阴离子
硫化物和
乙烯基碳之间的S偶联。