Synthesis and Reactivity of 2-(6,7-Diethoxy-3,4-dihydroisoquinolin- 1-yl)acetonitrile towards Hydrazonoyl Halides
作者:Enas M. Awad、Nehal M. Elwan、Hamdi M. Hassaneen、Anthony Linden、Heinz Heimgartner
DOI:10.1002/1522-2675(20010516)84:5<1172::aid-hlca1172>3.0.co;2-x
日期:2001.5.16
2-(aryldiazenyl)pyrrolo[2,1-a]isoquinoline derivatives 8 (Scheme 2), whereas with C-(ethoxycarbonyl)hydrazonoyl chlorides 14, 2-(arylhydrazono)pyrrolo[2,1-a]isoquinoline-1-carbonitriles 16 were formed (Scheme 4). The structures of the products were established from their analytical and spectroscopic data and, in the case of 8b, by X-ray crystallography.
2-(6,7-二乙氧基-3,4-二氢异喹啉-1-基)乙腈(1)的合成是根据Bischler-Napieralski方法(方案1)通过相应酰胺的闭环进行的。根据光谱数据,互变异构的 2-(四氢异喹啉-1-亚基)乙腈是实际化合物。在 Et3N 存在下,1 与 α-氧代腙酰卤化物 4 的反应生成 2-(芳基二氮烯基)吡咯并[2,1-a]异喹啉衍生物 8 (方案 2),而与 C-(乙氧羰基)腙酰氯 14, 2形成-(芳基肼基)吡咯并[2,1-a]异喹啉-1-腈16(方案4)。产品的结构是根据其分析和光谱数据确定的,在 8b 的情况下,是通过 X 射线晶体学确定的。