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RC
OSeAsPh2(5)、(RC
OSe)2AsPh(6)和(RC
OSe)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。