作者:Takahiro Kanda、Kazuaki Mizoguchi、Tadashi Koike、Toshiaki Murai、Shinzi Kato
DOI:10.1055/s-1994-25460
日期:——
Sodium Selenocarboxylates were found to react with organoarsanyl chlorides Ph3-nAsCln 1-3 (n = 1, 2, 3) to give the corresponding Se-organoarsanyl esters RCOSeAsPh2, (5), (RCOSe)2AsPh (6) and (RCOSe)3As (7) in good yields. The reaction of Se-diphenylarsanyl 4-methylbenzenecarboselenoate 5g with phenylselenenyl bromide and phenyltellurenyl iodide afforded the corresponding Se-phenylselenenyl 13 and Se-phenyltellurenyl esters 14 in moderate yields, while the reaction with sodium phenoxide gave sodium 4-methylbenzenecarboselenoate (4g), phenyl 4-methylbenzoate (11) and phenoxydiphenylarsine (12), indicating the attack of phenoxy anion to both the carbonyl carbon and arsenic atoms.
发现硒代羧酸钠与有机肿基氯化物Ph3-nAsCln 1-3(n=1,2,3)反应,生成相应的硒-有机肿基酯RCOSeAsPh2(5)、(RCOSe)2AsPh(6)和(RCOSe)2As(7),产率较高。硒-二苯基肿基4-甲基苯硒代羧酸酯5g与苯硒基溴和苯碲基碘反应,生成相应的硒-苯硒基酯13和硒-苯碲基酯14,产率适中。而与苯氧基钠反应则生成4-甲基苯硒代羧酸钠(4g)、苯基4-甲基苯甲酸酯(11)和苯氧基二苯基胂(12),表明苯氧负离子同时攻击了羰基碳和胂原子。