PHOTOCHEMICAL OXIDATION OF 4H-SELENO(THIO)PYRANS
DOI:
https://doi.org/10.1007/655Abstract
Oxidation of solutions of 4H-thiopyrans and 4H-selenopyrans to the corresponding heteroaromatic cation bromide occurs on irradiation with ultraviolet light in the presence of CBr4. Reaction takes place by a free radical chain mechanism. The presence of CHBr3 and C2Br6 in the reaction mixture was detected chromatographically.
Authors: B. I. Drevko, L. A. Fomenko, M. A. Suchkov, and V. G. Kharchenko.
English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (6), pp 663-665