1,6-reduction of 2-en-4-ynoates using lithium di-s-butylcyanocuprete
摘要:
Treatment of 2-en-4-ynoates 1 with lithium di-s-butylcyanocuprate in diethyl ether yields the 1,6-reduction products 2, whereas in tetrahydrofuran the 1,6-addition products 4 are obtained.