Formation and rearrangement of adducts from benzyne and substituted 2,1,3-benzoselenadiazoles
作者:Martin R. Bryce、Colin D. Reynolds、Peter Hanson、John M. Vernon
DOI:10.1039/p19810000607
日期:——
substituted 2,1,3-benzoselenadiazoles. Some of these adducts rearrange either thermally or photochemically to give 2-(2-pyridyl)phenyl selenocyanates (7), which are reduced to 2-phenylpyridine derivatives (6) or hydrolysed to give ultimately, diselenides (9). The crystal structure of one benzyne adduct (2b) is reported and the mechanism of its rearrangement discussed.
通过将苯炔加到取代的2,1,3-苯并硒基二唑上,已制备了一系列5-(1,2-苯并硒唑-3-基)戊二烯腈衍生物(2)。这些加合物中的一些通过热或光化学重排得到2-(2-吡啶基)苯基硒氰酸酯(7),将其还原为2-苯基吡啶衍生物(6)或水解得到最终的二硒化物(9)。报告了一种苯并加合物(2b)的晶体结构,并讨论了其重排机理。