New molecular rearrangement of tricyclic spirofuranoid into the alpha,alpha-disubstituted p-semiquinoid system

被引:0
|
作者
Sergeev, SV [1 ]
Nikanorov, VA [1 ]
Kharitonov, VG [1 ]
Yanovsky, AI [1 ]
Struchkov, YT [1 ]
Rozenberg, VI [1 ]
Reutov, OA [1 ]
机构
[1] RUSSIAN ACAD SCI,AN NESMEYANOV ORGANOELEMENT CPDS INST,MOSCOW 117813,RUSSIA
关键词
cyclohexadienones; alkylidenecyclohexadienes; spirofuranoids; molecular rearrangements;
D O I
10.1007/BF01434245
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new acid-catalyzed molecular rearrangement of Z-2,3,4,5,6,7-hexahydro-3-methoxy-carbonyl-4 '-trichloromethyl-4',6,6-trimethylspiro[benzofuran-2,1'-[2,5]cyclohexadien]-4-one into 4-methyl-4-trichloromethyl-1-(4,4-dimethyl-2-hydroxy-6-oxocyclo-1-hexenyl)(methoxycarbonyl)methylene]-2,5-cyclohexadiene was found. The structure of the latter compound was confirmed analytically, by spectral data, and by X-ray diffraction study.
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页码:1499 / 1501
页数:3
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