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2,1‐benzisothiazoles. X . Acylation of 2,1‐benzisothiazolin‐3‐one. A remarkable sulfur extrusion with ring expansion
Author(s) -
Davis Michael,
Pogany Stephen P.
Publication year - 1977
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570140221
Subject(s) - chemistry , acylation , extrusion , sulfur , ring (chemistry) , organic chemistry , polymer chemistry , composite material , catalysis , materials science
Acylation of 2,1‐benzisothiazolin‐3‐ones ( 1 ) in pyridine gives O ‐acyl derivatives initially; these rapidly extrude sulfur and form substituted 3,1‐benzoxazinones ( 4 ).