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Sulphamic Acid (H 2 NSO 3 H)‐Catalyzed Multicomponent Reaction of β ‐Naphthol: An Expeditious Synthesis of Amidoalkyl Naphthols
Author(s) -
NAGAWADE Rahul R.,
SHINDE Devanand B.
Publication year - 2007
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200790316
Subject(s) - chemistry , catalysis , condensation , urea , condensation reaction , reaction conditions , organic chemistry , thermodynamics , physics
Sulphamic acid (H 2 NSO 3 H) was found to be an efficient catalyst for the multicomponent condensation reaction of β ‐naphthol, aromatic aldehydes and urea or amides to afford the corresponding α ‐amidoalkyl‐ β ‐naphthols in good yields. The remarkable features of this new procedure are high conversions, short reaction time, clean reaction profiles and simple experimental and work‐up procedures.