Improved Procedure for N-Formylation of Amines to Formamides Using Formic Acid, Oxalyl Chloride and Imidazole.
نویسندگان
چکیده
منابع مشابه
Clean and Green Approach for N-formylation of Amines using Formic acid under neat reaction condition
In recent years much effort has been carried out on formylations of amines. N-formyl compounds have been widely used in organic synthesis as protecting group of amines [1]. They are also used for synthesis of pharmaceutically important heterocylces [2-5]. Formamides are the Lewis bases, which are known to catalyze reactions such as allylations [6] and hydrosilylations [7] of carbonyl compounds....
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چکیده ندارد.
Application of Green Procedure for the Synthesis of Substituted Pyrroles: Multi-component Reaction of Oxalyl Chloride
A novel, convenient and efficient approach to synthesis of pyrrole derivatives via the reaction of primary amines, alkyl propiolates and oxalyl chloride is described. The method offers several advantages including high yields of products and performing reaction in water as the solvent.
متن کاملFormylation of amines.
Methods to convert amines to formamides are of interest due to the many uses of formamides as synthetic intermediates. These methods include stoichiometric reactions of formylating reagents and catalytic reactions with CO as the carbonyl source. This review discusses the reported stoichiometric and catalytic approaches for preparation of formamides.
متن کاملChemoselective N-tert-butoxycarbonylation and N-formylation of Amines by B(OSO3H)3/SiO2 as an Efficient Heterogeneous and Recyclable Catalyst
A simple, efficient, and cost-effective procedure for the N-tert-butoxycarbonylation and N-formylation of amines (primary, secondary) respectively, with di-tert-butyl dicarbonate and 85% aqueous formic acid under solvent-free condition using B(OSO3H)3/SiO2 (SBSA) as a heterogeneous and recyclable catalyst has been developed. We demonstrated that the resulting catalyst is applicable to various a...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1994
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.42.1931