名称:
Diels-alder reactions with 2-substituted-α,β-unsaturated hydrazones in concentrated organic solutions of lintf2 ‡
摘要:
alpha,beta-Unsaturated hydrazones bearing an ester or a nitrile at C-2 position have been synthesized. They are unreactive towards electron-rich dienophiles but react with electron-poor dienophiles. Dramatic rate enhancements have been observed in concentrated organic solutions of LiNTf(2).
DOI:
10.1016/0040-4039(95)01949-i