|
|||||
|
|
Carbocyclization in natural products—II : Brominative cyclization of dihydrocostunolide |
|
| Authors: | Tikam C. Jain Calvin M. Banks J.Edmund McCloskey |
| Affiliation: | Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada |
| Abstract: | Treatment of dihydrocostunolide 1 with NBS in aqueous acetone at room temperature furnished bromolactones 3, 4 and 5. Structural evidence for these bromolactones rests upon spectral data and chemical correlations with santanolide “c” 10. Mass spectral fragmentation patterns for the bromolactones, with special reference to 4, have been also discussed. |
| Keywords: | Present address: Smith Kline & French Laboratories 1500 Spring Garden Street Philadelphia PA 19101 U.S.A. Inquires about this paper should be addressed to T.C. Jain at Philadelphia. |
| 本文献已被 ScienceDirect 等数据库收录！ | |