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Synthesis 1994; 1994(9): 898-900
DOI: 10.1055/s-1994-25595
DOI: 10.1055/s-1994-25595
short paper
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Synthesis and Reactivity of β-Amino α,β -Unsaturated Ketones and Esters Using K-10 Montmorillonite
Further Information
Publication History
Publication Date:
17 September 2002 (online)
A series of β-amino α,β-unsaturated ketones 3a-f and esters 3g-l may be conveniently prepared by dispersing ammonia (NH4OH solution), primary amines and 1,3-diketones or 1,3-keto esters on K-10 montmorillonite without solvent. This procedure was also applicable to the reactions of 3a and 3g with phenyl isocyanate and phenyl isothiocyanate which afford selectively the C-adducts 4a-d.