Tricarbonyl(dihydroazepinyl)chromium complexes and methylenepyrrolidines from (2'-dimethylaminoethenyl)carbenechromium complexes

Heiko Schirmer, Thomas Labahn, Bernard Flynn, Yao Ting Wu, Armin De Meijere

研究成果: Article

14 引文 斯高帕斯(Scopus)

摘要

The (3-amino-1-ethoxyalkenylidene)pentacarbonylchromium complexes 1 and 8 react with bulkily substituted terminal alkynes 2 and 9 in tetrahydrofuran to give η5-tricarbonyl(dihydroazepinyl)chromium complexes 3 and 12a which can be isolated in low yields. When the reactions are carried out in pyridine, the formal [5+2] cycloaddition is favored, but the complexes of type 12 are immediately further transformed to 2- (isobutyrylmethylene)pyrrolidines 13 in good yields.

原文English
頁(從 - 到)2004-2006
頁數3
期刊Synlett
發行號12
DOIs
出版狀態Published - 1999 一月 1

    指紋

All Science Journal Classification (ASJC) codes

  • Organic Chemistry

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