95637-48-2Relevant academic research and scientific papers
CYCLOADDITION REACTIONS OF 1,3-BENZOTHIAZINES -6. REACTIONS OF 1,3-BENZOTHIAZINE DERIVATIVES WITH SUBSTITUTED ACETYL CHLORIDES
Sohar, Pal,Fodor, Lajos,Szabo, Janos,Bernath, Gabor
, p. 4387 - 4393 (1984)
6,7-Dimethoxy-2H-1,3-benzothiazine derivatives (1, 8) react with substituted acetyl chlorides to give angularly condensed β-lactams (3a-d, 10, 11).The cis compound 11 was epimerised to the trans derivative 12.From the interaction of 2-phenyl-6,7-dimethoxy
