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Synthesis 2004(8): 1249-1252
DOI: 10.1055/s-2004-822350
DOI: 10.1055/s-2004-822350
PAPER
© Georg Thieme Verlag Stuttgart · New York
Studies on the Synthesis of 1-Aminoalkylphosphonates from Aldehydes Using Silica-Supported Ammonium Hydrogen Carbonate
Further Information
Publication History
Received
8 February 2004
Publication Date:
28 April 2004 (online)


Abstract
Studies on the use of silica-supported ammonium hydrogen carbonate as an efficient reagent for the synthesis of 1-aminophosphonates under microwave irradiation in solvent-free conditions is reported. Investigations showed that this reaction proceeds by the formation of methanediamine as an intermediate. The reaction in the absence of diethyl phosphite gave cis-imidazolines as the major products.
Key words
1-aminophosphonates - silica - ammonium hydrogen carbonate - methanediamines - imidazolines