摘要
Reaction of lithium diisopropylamide (LDA) with (η4-1,3-cyclohexadiene)Fe(CO)3 complexes bearing functionalized side chains at C-5, under an atmosphere of carbon monoxide, gives bridged bicyclo[3.2.1]octene and bicyclo[3.3.1]nonene systems after electrophilic quenching, whereas larger rings cannot be obtained in this series. Under the same reaction conditions, intramolecular cyclization of acyclic (η4-1,3-butadiene)Fe(CO)3 complexes with functionalized side chains at the terminal position of the diene ligands furnishes fused bicyclo[3.3.0]octanone and bicyclo[4.3.0]nonanone derivatives after acid quenching. The iron-mediated intramolecular nucleophilic addition allows for the direct stereocontrol of four stereogenic centers of these fused bicyclic skeletons.
原文 | 英語 |
---|---|
頁(從 - 到) | 5941-5952 |
頁數 | 12 |
期刊 | Journal of the American Chemical Society |
卷 | 115 |
發行號 | 14 |
DOIs | |
出版狀態 | 已發佈 - 1993 7月 1 |
ASJC Scopus subject areas
- 催化
- 化學 (全部)
- 生物化學
- 膠體和表面化學