FORMATION OF HIGHLY SUBSTITUTED CYCLOPENTANES FROM RADICAL AND ANIONIC MICHAEL CYCLIZATIONS OF ALPHA-IODO-GAMMA-LACTONES AND ALPHA-IODO-DELTA-LACTONES
α-Iodo-δ- and -γ-hexonlactones with α,β-unsaturated esters developed from C-6 undergo both tributyltin hydride-induced radical and base catalysed anionic Michael cyclisations to form bicyclic lactones with very highly substituted homochiral cyclopentanes. The δ-lactones give cyclopentane products in...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1994
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