Br. Chaudhari et al., SYNTHESIS OF SOME NEW 1,4-BENZOTHIAZINES AND THEIR ANTI PSYCHOTIC ACTIVITY, Polish Journal of Chemistry, 70(10), 1996, pp. 1250-1256
1,4-Benzothiazines (1-28) have been synthesized by treating substitute
d aminothiophenols with various substituted beta-diketones in the pres
ence of piperidine in THF solution.