Synthesis of substituted amines and isoindolinones: catalytic reductive amination using abundantly available AlCl3/PMHS
作者:Vishal Kumar、Sushila Sharma、Upendra Sharma、Bikram Singh、Neeraj Kumar
DOI:10.1039/c2gc36305d
日期:——
AlCl3 has been employed for highly chemoselective reductive amination of carbonyl compounds in ethanol using polymethylhydrosiloxane as an inexpensive, stable and safe reducing agent without an inert atmosphere. A large range of functional groups such as nitro, carboxylic acid, acetyl, nitrile, halogen, methoxy, alkene and heterocycles were well tolerated. AlCl3 also catalyzed tandem amination–amidation
AlCl 3已用于使用聚甲基氢硅氧烷作为廉价,稳定和安全的还原剂,在无惰性气氛的情况下对乙醇中的羰基化合物进行高度化学选择性的还原胺化反应。很好地耐受了各种官能团,例如硝基,羧酸,乙酰基,腈,卤素,甲氧基,烯烃和杂环。AlCl 3还催化2-羧基苯甲醛与不同的胺进行串联胺化-酰胺化反应,得到N-取代的异吲哚满酮。该催化剂可以循环至少三遍,而对活性和选择性没有任何明显的影响。