Se-Alkynyl selenocarboxylates (1) were found to readily react with alcohols and amines to give O-alkyl selenocarboxylates (4) and selenoamides (6) in moderate to good yields, respectively. The formation mechanisms of 4 and 6 via selenoketene and ammonium alkyneselenolate, respectively, are proposed.
Synthesis of<i>cis</i>and<i>trans</i>-2,6-diphenyl-1,4-diselena-fulvenes from Phenyiacetylene with Selenium and Base Under PTC-Ultrasound Conditions
作者:Jin-Xian Wang(Chin-Hsien Wang)、Kai Zhao
DOI:10.1080/00397919608003531
日期:1996.4
synthesis of cis-and trans-2, 6-diphenyl- 1, 4-diselenafulvenes is described. The process involves the reaction of phenylacetylene with sodiumhydroxide and selenium at 45–50°C and under PTC-Untrasound conditions to afford the 1, 4-diselenafulvenes in good to excellent isolated yields. The reactionmechanism is discussed.