Reaction of 2-pyridylselenenyl bromide with divinyl selenide
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In this paper, we elaborate on novel approaches to annelation of chalcogen-containing rings [2, 3, 4, 5, 6]. One of the important intermediates that can serve for the annelation of chalcogen-containing rings to the pyridine cycle is 2-pyridylselenenyl halides [7, 8]. Although 2-pyridylselenenyl chloride was used in annelation reactions [7, 8], 2-pyridylselenenyl bromide was not. It was reported that 2-pyridineselenenyl bromide reacted with styrene in methanol to give the solvoadduct – 1-methoxy-1-phenyl-2-(2-pyridylselanyl)ethane – in quantitative yield . Annelation products were not formed in this reaction.
Keywordsdivinyl selenide pyridineselenenyl bromide electrophilic addition nucleophilic substitution
Financial support of the Russian Foundation for Basic Research (grants Nos. 10-03-00543 and 10-03-92666) is gratefully acknowledged.
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