Yusubov, MS, Filimonov, VD & Rogachev, VO 1996, 'New Reaction of Phenylacetylene with Sulfuric Acid: Heterocyclization into 4,6-Diphenyl-1,2-oxathiin 2,2-Dioxide' Russian Journal of Organic Chemistry, vol 32, no. 8, pp. 1229-1230. ... Yusubov, MS, Filimonov, VD, & Rogachev, VO (1996). New Reaction of Phenylacetylene with Sulfuric Acid: Heterocyclization into 4,6-Diphenyl-1,2-oxathiin 2,2-Dioxide. Russian Journal of Organic Chemistry, 32(8), ...