Catalytic Enantioselective Synthesis of Tetrahydroisoquinolines and Their Analogues Bearing a C4 Stereocenter: Formal Synthesis of (+)-(8<i>S</i>,13<i>R</i>)-Cyclocelabenzine
作者:Zhilong Chen、Zhaobin Wang、Jianwei Sun
DOI:10.1002/chem.201301065
日期:2013.6.24
A one‐pot wonder: 1,2,3,4‐Tetrahydroisoquinolines with a C4 stereocenter can be formed by using a one‐pot multicomponent chiral phosphoric acid catalyzed transformation of a mixture of oxetane‐tethered benzaldehydes, amines, and the dimethyl ester derivative of the Hantzsch ester (see scheme). This transformation can be used to prepare the spermidine alkaloid (+)‐(8S,13R)‐cyclocelabenzine.
一锅奇迹:使用一锅多组分手性磷酸催化氧杂环丁烷系苯甲醛,胺和二甲基酯衍生物的混合物的转化,可以形成具有C4立体中心的1,2,3,4-四氢异喹啉Hantzsch酯(参见方案)。该转化可用于制备亚精胺生物碱(+)-(8 S,13 R)-环西兰嗪。