A Scalable Process for the Synthesis of 1,2-Dialkyldiselanes and 1-Alkaneselenols
作者:John P. Cooksey、Philip J. Kocieński、A. John Blacker
DOI:10.1021/acs.oprd.9b00380
日期:2019.11.15
telescoped process for the synthesis of 1-alkaneselenols entails (1) the rapid formation of potassium selenocyanate from potassium cyanide and selenium in methanol, (2) the nucleophilic substitution of bromoalkanes or alkyl tosylates with potassium selenocyanate, (3) the mild base-catalyzed conversion of the resultant 1-alkaneselenocyanates to 1,2-dialkyldiselanes (the Krief reaction), and (4) the reduction
A NEW ROUTE TO ALKYL SELENOCYANATE FROM OLEFIN VIA HYDROBORATION. REACTION OF ORGANOBORANES WITH FERRIC SELENOCYANATE
作者:Akira Arase、Yuzuru Masuda
DOI:10.1246/cl.1976.785
日期:1976.7.5
Trialkylboranes, prepared by hydroboration of terminal or internal olefins, react with ferric selenocyanate in an aqueous tetrahydrofuran to give corresponding primary or secondary alkyl selenocyanates.
Selenocyanation using a combined reagent of triphenylphosphine and selenocyanogen. A new and simple synthesis of alkyl selenocyanates and symmetrical alkyl diselenides from alcohols
作者:Y. Tamura、M. Adachi、T. Kawasaki、Y. Kita
DOI:10.1016/s0040-4039(01)93689-5
日期:1979.1
tri-phenylphosphine to selenocyanogen solution in methylene chloride and tetrahydrofuran reacts below −60° with primaryalcohols to produce directly the corresponding alkyl selenocyanates and alkyl diselenides in good yields. With secondaryalcohols mixtures of selenocyanates and isoselenocyanates are obtained, while tertiary alcohols fail to react with the reagent.
Arylation of <i>n</i>-Hexylthiol and <i>n</i>-Hexyl Phenyl Sulfide Using Diphenyliodonium Triflate: Synthetic and Mechanistic Aspects - Application to the Transformation of <i>n</i>-Hexylthiol to <i>n</i>-Hexylselenide
作者:Alain Krief、Willy Dumont、Michael Robert
DOI:10.1055/s-2006-926235
日期:——
n-Hexyl diphenylsulfonium triflate has been efficiently prepared from n-hexylthiol and diphenyliodonium triflate and has been efficiently transformed to n-hexyl selenide.