LEWIS-ACID PROMOTED REARRANGEMENT OF SIGMA-HOMO-ORTHO-BENZOQUINONES TO ALPHA-TROPOLONE DERIVATIVES - APPLICATION TO REGIOCONTROLLED SYNTHESES OF MY3-469 AND ISOPYGMAEIN

被引:33
作者
BANWELL, MG
COLLIS, MP
机构
关键词
D O I
10.1039/c39910001343
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Reaction of various sigma-homo-omicron-benzoquinones, e.g. 42, with BF3.Et2O results in the formation of the tropolonoboron difluoride derivatives, e.g. 43, of the isomeric alpha-tropolones, e.g. isopygmaein 33.
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页码:1343 / 1345
页数:3
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