作者:Fang Ren、Yan Zhang、Lan Hu、Meiming Luo
DOI:10.3998/ark.5550190.0014.313
日期:——
The N,N bond cleavage in hydrazines to amines via low-valent titanium reagent prepared in situ by treatment of TiCl4 with Mg powder in THF or CH2Cl2-Et2O is described. The reaction proceeds smoothly under mild conditions to afford amines in good to excellent yields with diverse functional group tolerance such as chloride, methoxyl, benzyloxyl, ester, acyl, as well as C,C double bonds and benzyl-nitrogen
描述了通过在 THF 或 CH2Cl2-Et2O 中用 Mg 粉处理 TiCl4 原位制备的低价钛试剂,将肼中的 N,N 键裂解为胺。该反应在温和的条件下顺利进行,以良好的收率获得具有多种官能团耐受性的胺,如氯化物、甲氧基、苄氧基、酯、酰基,以及 C、C 双键和苄基 - 氮键。