Benzoannelated valence isomers of homoannulenes .4. Flow vacuum pyrolysis of 1,2,3,3a,8,8a-hexahydro-2,3,8-methenocyclopentindene

被引:15
作者
Banciu, MD [1 ]
Olteanu, E [1 ]
Draghici, C [1 ]
Petride, A [1 ]
Danila, M [1 ]
机构
[1] ROMANIAN ACAD,CD NENITZESCU INST ORGA CHEM,BUCHAREST 71141,ROMANIA
关键词
benzo(C9H10)hydrocarbons; flow vacuum pyrolysis; pyrolysis; thermal isomerization; valence isomers of homoannulenes;
D O I
10.1016/0165-2370(96)00940-0
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Pyrolysis of 1,2,3,3a,8,8a-hexahydro-2,3,8-methenocyclopentindene in a flow system at 1.33 mbar, in an argon atmosphere and at temperatures between 500 and 750 degrees C was studied by GC/MS. The first pyrolysis product, 1,6-dihydro-1,6-methanobenzo[d]cyclooctene (a new compound), was converted at elevated temperatures into mainly alpha- and beta-allylnaphthalenes and fluorene. A reaction mechanism including radical and concerted steps is suggested.
引用
收藏
页码:151 / 160
页数:10
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