中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-溴-6-甲氧基苯甲酸 | 2-bromo-6-methoxybenzoic acid | 31786-45-5 | C8H7BrO3 | 231.046 |
2-溴-6-甲氧基苯甲醛 | 2-bromo-6-methoxybenzaldehyde | 126712-07-0 | C8H7BrO2 | 215.046 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ((2-bromo-6-methoxybenzyl)oxy)(tert-butyl)dimethyl silane | 1431546-82-5 | C14H23BrO2Si | 331.325 |
—— | 1-bromo-2-(bromomethyl)-3-methoxybenzene | 126712-05-8 | C8H8Br2O | 279.959 |
1-溴-2-(氯甲基)-3-甲氧基苯 | 2-bromo-6-methoxybenzylchloride | 93710-53-3 | C8H8BrClO | 235.508 |
—— | 2-bromo-6-methoxybenzylcyanide | 93710-55-5 | C9H8BrNO | 226.073 |
A Cu‐catalyzed asymmetric synthesis of silicon‐stereogenic benzoxasiloles has been realized via intramolecular Si−O coupling of [2‐(hydroxymethyl)phenyl]silanes. Cu(I)/difluorphos is found to be an efficient catalytic system for enantioselective Si−C bond cleavage and Si−O bond formation. In addition, kinetic resolution of racemic substituted [2‐(hydroxymethyl)phenyl]silanes using Cu(I)/ PyrOx (pyridine‐oxazoline ligands) as the catalytic system is developed to afford carbon‐ and silicon‐stereogenic benzoxasiloles. Ring‐opening reactions of chiral benzoxasiloles with organolithiums and Grignard reagents yield various enantioenriched functionalized tetraorganosilanes.