5-METHYLENE-2-CYCLOPENTENONES AS NEW FORMAL [2+2+1] CYCLOADDUCTS FROM [2-(DIBENZYLAMINO)ETHENYL]CARBENECHROMIUM COMPLEXES AND ALKYNES

被引:31
作者
DUETSCH, M
VIDONI, S
STEIN, F
FUNKE, F
NOLTEMEYER, M
DEMEIJERE, A
机构
[1] UNIV GOTTINGEN,INST ORGAN CHEM,D-37077 GOTTINGEN,GERMANY
[2] UNIV GOTTINGEN,INST ANORGAN CHEM,D-37077 GOTTINGEN,GERMANY
关键词
D O I
10.1039/c39940001679
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
2-Alkylsubstituted pentacarbonyl{[2-(dibenzylamino)ethenyl]ethoxycarbene}chromium complexes 3a,b react with diphenylethyne 4, but-2-yne 5, or cyclooctyne 6 to give 5-(dibenzylaminomethylene)-4-ethoxy-2-cyclopentenonones 8a,b, 9a, 10a, and 10b in good yields (59-78%).
引用
收藏
页码:1679 / 1680
页数:2
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