在
盐酸 作用下,
以
乙醇 为溶剂,
反应 0.08h,
以88%的产率得到(R)-(+)-crispine A
参考文献:
名称:
Short stereoselective synthesis of (+)-crispine A via an N-sulfinyl Pictet–Spengler reaction
摘要:
We report the highly stereoselective synthesis of (R)-(+)-crispine A from the (R)-N-sulfinyl amine 1 by using a one-pot process involving the Pictet-Spengler reaction with 4-chlorobutanal, removal of the sulfinyl group by protonolysis of the N-S bond and in situ cyclization, with a 55% overall yield. (C) 2013 Elsevier Ltd. All rights reserved.
Short stereoselective synthesis of (+)-crispine A via an N-sulfinyl Pictet–Spengler reaction
摘要:
We report the highly stereoselective synthesis of (R)-(+)-crispine A from the (R)-N-sulfinyl amine 1 by using a one-pot process involving the Pictet-Spengler reaction with 4-chlorobutanal, removal of the sulfinyl group by protonolysis of the N-S bond and in situ cyclization, with a 55% overall yield. (C) 2013 Elsevier Ltd. All rights reserved.