【摘要】 本文报道α-噻吩甲酰基次甲基三苯胂及其与酸酐、酰卤的反应,分别获得相应的双酮胂叶立德(2_n-d)和季钟盐烯醇酯衍生物(3_a～f)。后者在碱溶液中加热,可生成胂叶立德(2_c,d)或者胂叶立德（1）,产物经元素分析、红外光谱、核磁共振谱和质谱鉴定,确定了结构。更多还原

【Abstract】 This paper presents the mass spectrum of α-thenoylacylmethyltriphenylarsine (1) and its reactions with acid anhydrides and acyl halides. The fragment peaks pf arspnium ylide (1) are shpwn.Arspnium ylide (1) reacted with a variety pf acid anhydrides tp fprm new stable derivatives pf the corresppnding diketoarsonium ylides (22-d) at 30-60℃; in benzene. Acylation of arsonium ylide (1) with acyl halides in benzene led to enol-ester derivatives (3α-1). We alsp found that when arsonium ylides (3c,d ) was heated in basic trichloromethane, diketoarsonium ylides (4d) and arsonium ylide (1) was obtained. The structures of products have been ascertained by elemental analysis, IR and 1H NMR spectroscopies.更多还原