CYCLOBUTENE DERIVATIVES AS ISOPRENE EQUIVALENTS IN TERPENE SYNTHESIS .3. BICYCLO[2.2.0]HEXANES

被引:49
作者
WILSON, SR [1 ]
PHILLIPS, LR [1 ]
PELISTER, Y [1 ]
HUFFMAN, JC [1 ]
机构
[1] INDIANA UNIV,CTR MOLEC STRUCT,BLOOMINGTON,IN 47401
关键词
D O I
10.1021/ja00518a040
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two new syntheses of cyclobutene esters and the use of 1-cyanocyclobutene as potential isoprene synthons are described. Photocycloaddition of methyl cyclobut-1-enecarboxylate and 1-cyanocyclobutene to piperitone, followed by reduction and lactonization, gives photodihydroaristolactone 15. Single-crystal X-ray analysis of 15 and related 4 reveals interesting structural features in the strained bicyclo[2.2.0]hexane system. Thermolysis of lactones 15 and 4 yields 1,5-cyclodecadienes related to germacrene sesquiterpenes. © 1979, American Chemical Society. All rights reserved.
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收藏
页码:7373 / 7379
页数:7
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