作者:Tse-Lok Ho、Eugene?V. Kuzakov
DOI:10.1002/hlca.200490241
日期:2004.10
A synthesis of nicotyrine (9), and hence formally racemic nicotine, was carried out by elaboration of the 1 : 1 adduct 2 of cycloocta-1,5-diene and chlorosulfonyl isocyanate (ClSO2NCO). Transformation of adduct 2 into carbamate 4 was followed by ozonolysis, tosylation, and NaH treatment, which led to pyrrolidinylpiperidinone 6. LiAlH4 Reduction, debenzylation, and aromatization yielded 2.
尼古丁碱(9)的合成,以及形式上外消旋的尼古丁的合成,是通过对环辛-1,5-二烯与氯磺酰基异氰酸酯(ClSO 2 NCO)的1:1加合物2进行精制而进行的。加合物2转化为氨基甲酸酯4,然后进行臭氧分解,甲苯磺酸化和NaH处理,从而导致吡咯烷基吡啶基酮6。LiAlH 4的还原,脱苄基作用和芳构化反应产生2。