Selective carbene transfer to amines and olefins catalyzed by ruthenium phthalocyanine complexes with donor substituents
作者:Lucie P. Cailler、Andrey P. Kroitor、Alexander G. Martynov、Yulia G. Gorbunova、Alexander B. Sorokin
DOI:10.1039/d0dt04090h
日期:——
Electron-rich ruthenium phthalocyanine complexes were evaluated in carbene transfer reactions from ethyl diazoacetate (EDA) to aromatic and aliphatic olefins as well as to a wide range of aromatic, heterocyclic and aliphatic amines for the first time. It was revealed that the ruthenium octabutoxyphthalocyanine carbonyl complex [(BuO)8Pc]Ru(CO) is the most efficient catalyst converting electron-rich
富电子钌酞菁配合物是首次从重氮乙酸乙酯(EDA)到芳香族和脂肪族烯烃以及各种芳香族,杂环和脂肪族胺的卡宾转移反应中进行评估的。结果表明,八丁氧基酞菁钌羰基络合物[(BuO)8Pc] Ru(CO)是最有效的催化剂,在低催化剂负载和几乎等摩尔的底物条件下,可以将高电子含量和电子贫乏的芳族烯烃转化为环丙烷衍生物,并具有高收率(通常为80–100%)和高TON(最高为1000)。 / EDA比。该催化剂在卡宾插入胺N–H键中显示出罕见的效率。使用0.05摩尔%的催化剂负载量,高胺浓度(1M)和1.1当量。在EDA的作用下,许多结构不同的胺被选择性地转化为单取代的甘氨酸衍生物,其定量收率和周转数均达到2000。高选择性,大底物范围,低催化剂载量和实际反应条件[[BuO)8 Pc ] Ru(CO)是卡宾插入胺中最有效的催化剂。