Bulletin of the Chemical Society of Japan p. 2235 - 2242 (1996)
Update date:2022-08-04
Topics: Amine Base Chloroform Elemental selenium Willgerodt-Kindler Type Selenation Dihalomethane Derivatives Sodium Trichloroacetate Selenated Products
Shimada, Kazuaki
Yamaguchi, Minoru
Sasaki, Tohru
Ohnishi, Kenji
Takikawa, Yuji
Treatment of dihalomethane derivatives, chloroform, or sodium trichloroacetate with elemental selenium in the presence of NaH and an excess amount of an amine gave the corresponding selenoamides, selenoureas, and bis(selenocarbamoyl) triselenides in modest yields. These products were afforded from reactive intermediates related to "selenocarbonyl halides" and "selenophosgenoids" generated by the reaction of dichloromethanide ions and trichloromethanide ion with N-alkylated aminopolyselenide species (R2N-(Se)n-).
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