TY - JOUR
T1 - A synthesis of a novel heterocyclic system
T2 - 2H-furo[3,2-b][1,4] benzothiazin-2-one
AU - Dolzhenko, Anton V.
AU - Chui, Wai Keung
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2004/11/1
Y1 - 2004/11/1
N2 - A synthesis of 3-methyl-2H-furo[3,2-b][1,4]benzothiazin-2-ones (10a,b) is described. o-Aminothiophenols (1a,b) undergo condensation with citraconic anhydride followed by cyclization and oxidation of the resulting 2-(3,4-dihydro-2H-1,4-benzothiazin-2-yl)propanoic acids (5) with thionyl chloride gives moderate yield of 10a,b.
AB - A synthesis of 3-methyl-2H-furo[3,2-b][1,4]benzothiazin-2-ones (10a,b) is described. o-Aminothiophenols (1a,b) undergo condensation with citraconic anhydride followed by cyclization and oxidation of the resulting 2-(3,4-dihydro-2H-1,4-benzothiazin-2-yl)propanoic acids (5) with thionyl chloride gives moderate yield of 10a,b.
UR - http://www.scopus.com/inward/record.url?scp=9444284276&partnerID=8YFLogxK
U2 - 10.3987/com-04-10208
DO - 10.3987/com-04-10208
M3 - Article
AN - SCOPUS:9444284276
SN - 0385-5414
VL - 63
SP - 2623
EP - 2626
JO - Heterocycles
JF - Heterocycles
IS - 11
ER -