中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | perillenal | 22391-28-2 | C10H12O2 | 164.204 |
(E)-5-(呋喃-3-基)-2-甲基戊-2-烯-1-醇 | (E)-5-(furan-3-yl)-2-methylpent-2-en-1-ol | 22391-29-3 | C10H14O2 | 166.22 |
(E)-5-(呋喃-3-基)-2-甲基戊-2-烯酸乙酯 | (E)-5-(furan-3-yl)-2-methylpent-2-enoic acid ethyl ester | 180334-02-5 | C12H16O3 | 208.257 |
1,4-Dien-3-ones substituted with pendant arylethyl side chains attached at C-1 were readily prepared from substituted dihydrocinnamaldehydes. Treatment with TiCl4 at low temperature effected domino Nazarov electrocyclization arene trapping within 5 min to give racemic benzohydrindenones in near-quantitative yield and with complete diastereoselectivity.Key words: domino process, electrophilic aromatic substitution, Lewis acid, Nazarov cyclization.