ACYLNITRILIUM ION INITIATED HETEROANNULATIONS IN ALKALOID SYNTHESIS - AN EFFICIENT, STEREOCONTROLLED, TOTAL SYNTHESIS OF THE ORCHIDACEAE ALKALOID (+/-)-DENDROBINE

被引:47
作者
LEE, CH [1 ]
WESTLING, M [1 ]
LIVINGHOUSE, T [1 ]
WILLIAMS, AC [1 ]
机构
[1] MONTANA STATE UNIV,DEPT CHEM,BOZEMAN,MT 59717
关键词
D O I
10.1021/ja00037a009
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A concise total synthesis of (+/-)-dendrobine is described that proceeds in eight steps from 2-methylcyclopent-2-en-1-one. The key transformation in this approach is the silver ion mediated cyclocondensation of the isonitrile 6 with the acyl chloride 5. This highly convergent reaction proceeds in excellent (88%) overall yield to provide the DELTA-1-pyrroline 4.
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页码:4089 / 4095
页数:7
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