In low temperature, reaction of ketone with sodium acetylide synthesized 1 - ethynyl - 2,3, 4,5 - tetramethyl - 2 - cyclopentene - 1 - ol; 1,2 - diphenyl - 2 - hydroxy - 3 - butine - 1 - one; 3,4 - diphenyl - 1,5 - hexad...

cyclopentene的音标：cyclopentene的英式发音音标为：[saɪkləʊ'penti:n]cyclopentene的美式发音音标为：[saɪkloʊ'pentin]...

n.环戊烯...