107545-11-9Relevant academic research and scientific papers
PHOTOCYCLOADDITION of DIETHYL ACETYLENEDICARBOXYLATE to 2-PHENYL-4H-1,3-BENZOTHIAZINE DERIVATIVES
Sindler-Kulyk, Marija,Dumbovic, Alojz,Srzic, Dunja,Metelko, Biserka,Fodor, Lajosz
, p. 2749 - 2752 (2007/10/02)
Upon irradiation in the presence of diethyl acetylenedicarboxylate 6,7-dimethoxy-2-phenyl-4H-1,3-benzothiazine gives two main products: benzonitrile (X) and 2,3-carbethoxy-4,5-dimethoxy-7-methylbenzothiophene (XI).We report herein the first photochemical reaction of a 4H-1,3-benzothiazine derivative.
