Intermediate dianions formed by nucleophilic attack of methyllithium on α-phenyl or α-phenylthio carboxylate salts fragment in highly coordinating solvents to produce stabilized carbanions. Once formed, these anions may be conveniently functionalized with various electrophilic reagents.
在高度配位的溶剂中,
甲基锂对α-苯基或α-苯
硫基
羧酸盐片段的亲核攻击而形成的中间二价阴离子,以生成稳定的碳负离子。一旦形成,这些阴离子可以方便地用各种亲电试剂官能化。