A variety of functionalized benzonitriles were regioselectively prepared by formal [3+3] cyclocondensation of 1,3-bis(silyloxy)buta-1,3-dienes with 3-ethoxy- and 3-silyloxy-2-cyano-2-en-1-ones.
多种功能化的苯腈通过1,3-双(
硅氧)丁-1,3-二烯与3-乙氧基和3-
硅氧基-2-
氰基-2-烯-1-酮的形式[3+3]环缩合选择性地制备。