Synthesis of 2-Hydroxy-5-Arylselanyl-Benzoates by [3+3] Cyclocondensation of 1,3-Bis(Silyloxy)-1,3-Butadienes with 2-Arylseleno-3-Silyloxy-Alk-2-en-1-Ones
Functionalized diaryl selenides were prepared by the first [3+3] cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with organoselenium compounds (i.e., 2-(phenylselanyl)-3-silyloxy-3-en-1-ones).