New evidence for the presence of a spiroindolenine intermediate in Pictet–Spengler reaction of N<sup>b</sup>-hydroxytryptamine
作者:Masako Nakagawa、Jinjun Liu、Koreharu Ogata、Tohru Hino
DOI:10.1039/c39880000463
日期:——
The Pictet–Spengler reaction between Nb-hydroxytryptamine and cysteinals in the presence of trifluoroacetic acid gave, in addition to the normal products, β-carbolines (12)–(17), the unexpected tetracyclic compounds (4)–(9), providing new evidence for a spiroindolenine intermediate.
在三氟乙酸存在下,N b-羟色胺和半胱氨酸之间的Pictet-Spengler反应除正常产物外,还产生β-咔啉(12)-(17),意外的四环化合物(4)-(9),提供了螺螺吲哚碱中间体的新证据。