Phosphine-Free Well-Defined Mn(I) Complex-Catalyzed Synthesis of Amine, Imine, and 2,3-Dihydro-1<i>H</i>-perimidine via Hydrogen Autotransfer or Acceptorless Dehydrogenative Coupling of Amine and Alcohol
report the synthesis of amines/imines directly from alcohol and amines via hydrogen autotransfer or acceptorless dehydrogenation catalyzed by well-defined phosphine-free Mn complexes. Both imines and amines can be obtained from the same set of alcohols and amines using the same catalyst, only by tuning the reaction conditions. The amount and nature of the base are found to be a highly important aspect for
Catalyst-free autocatalyzedN-alkylation of heteroarylamines with alcohols is achieved by tautomerization-induced ready generation of carbonyl intermediates from alcoholsviaTM-free MPV–O reaction.
An Aerobic Oxidative Coupling Approach for The Synthesis of N-Substituted 2-Aminobenzothiazole Derivatives using Iron Catalyst
作者:N. V. Anil Kumar、Shailesha Kamath、Santosh L Gaonkar、Nitinkumar S. Shetty
DOI:10.13005/ojc/320349
日期:2016.6.28
A facile and convenient method was developed for the formation of novel N substituted 2-aminobenzothiazoles via an iron-catalysed condensation of 2-aminobenzothizole with different amines. This method is applicable for a wide range of aliphatic, aromatic and heterocyclic amines furnishing moderate yields of the corresponding products and thus rendering the methodology as a highly eco-friendly, inexpensive alternative to the existing methods.
通过铁催化 2-氨基苯并噻唑与不同胺类的缩合反应,开发了一种简便易行的方法来生成新型 N 取代的 2-氨基苯并噻唑。该方法适用于多种脂肪族、芳香族和杂环胺,相应产物的产率适中,因此是一种高度环保、成本低廉的方法,可替代现有方法。