| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 4-溴苯甲酸 | 4-Bromobenzoic acid | 586-76-5 | C7H5BrO2 | 201.019 |
Esters are of widespread use for protecting carboxylic acids in organic synthesis. However, methods to cleave esters often employ harsh conditions. Herein, we report a new and mild method for the reductive cleavage of 2,2,2-trichloroethylesters (TCE esters). Our radical method employs Cp2TiCl as an electron transfer catalyst and Zn dust as stoichiometric reducing agent. It avoids the use of strong Brønstedt-acids as well as aqueous conditions and can be carried out at room temperature.