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 Novel Synthesis of Allyl Selenides by Reaction of an Organosamarium Reagent With Alkyl Selenocyanates
作者:You Huang、Ruyu Chen
DOI:10.1080/00397910008087330
日期:2000.1
Abstract Allyl samarium bromide is prepared by direct reaction of allyl bromide with samarium metal in the presence of a catalytic amount of iodine. This reacts with alkyl selenocyanates to give the corresponding allyl selenides in excellent yields under neutral and mild conditions.