中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-(苯并[d][1,3]二氧代-5-基)丙醛 | 3-(3,4-methylenedioxyphenyl)propionaldehyde | 30830-55-8 | C10H10O3 | 178.188 |
1,3-苯并间二氧杂环戊烯-5-丙醇 | 3-(benzo[d][1,3]dioxol-5-yl)propan-1-ol | 7031-03-0 | C10H12O3 | 180.203 |
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.