- 作者: Andresen, Sven ; Margaretha, Paul
- 作者服務機構: Inst. of Organic Chemistry, Univ. of Hamburg, Germany
- 中文摘要: Irradiation of 5,5-dimethyl-6-oxocyclohex-1-ene-1- carbonitrile in the presence of 2,3-dimethylbut-2-ene afforded 3,3,4,4,7,7-hexamethyl-3,4,4a,5,6,7-hexahydroindeno [ 1,7-c,d ] -1,2-oxazole in nearly quantitative yield. In contrast, 4,4-dimethyl-5- oxo-cyclopent-1-ene-1-carbonitrile under the same conditions reacted not to a tricyclic isoxazole but to a 2:1 mixture of 3,3,6,6,7,7-hexamethyl-2- oxo-bicyclo [ 3.2.0 ] heptane-1-carbonitrile and trans-3,3- dimethyl-2-oxo-5-(2,3-dimethylbut-3-en-2- yl)cyclopentane-1- carbonitrile, respectively.
- 英文摘要: --
- 中文關鍵字: Isoxazole; Triplet Biradical; Vinyl Nitrene; Photochemistry; Stepwise Cycloaddition
- 英文關鍵字: 異唑;三重態雙自由基;乙烯氮烯;光化學;逐步環加成