Synthesis of thieno[2′,3′(3′,4′ or 3′,2′):5,6]azepino[2,1-<i>a</i>]isoindolediones from<i>N</i>-Thienyl-2(3)-ylmethylphthalimides
作者:Pascal Pigeon、Bernard Decroix
DOI:10.1002/jhet.5570330123
日期:1996.1
Reduction of N-thienybnethylphthalimides 5a-e followed by the Wittig reaction gave the substituted acetic acids 8a-e. Their corresponding acyl chlorides where cyclized in the presence of aluminium trichloride to furnish the cyclic ketones 9a-e. Treatment of these ketones with bromine followed by triethylamine, or with selenium dioxide led to the thienoazepinoisoindolediones 1a-e.
还原N-噻吩基乙基邻苯二甲酰亚胺5a-e,然后进行Wittig反应,得到取代的乙酸8a-e。它们相应的酰氯在三氯化铝的存在下环化以提供环状酮9a-e。用溴,再用三乙胺,或用二氧化硒处理这些酮,得到噻吩并氮杂异吲哚二酮1a-e。