131569-40-9Relevant academic research and scientific papers
Polycondensed Heterocycles. IV. Synthesis of 1,4-Dioxo-2,3,3a,4-tetrahydro-1H-pyrrolobenzothiazine
Nacci, V.,Campiani, G.,Garofalo, A.
, p. 1329 - 1335 (2007/10/02)
A method for the synthesis of the title compound 3 consisted of an intramolecular cyclization in a stannic chloride catalyzed Friedel-Crafts reaction of N-(2-methylthiophenyl)-5-oxoproline chloride 10, prepared by chlorination of the corresponding acid 9
