| 摘要 |
Disclosed herein is a process for making chloroacid chlorides by reacting olefinic compounds with either phosgene in the presence of carbon monoxide, or with the equivalent of phosgene, a preheated mixture of chlorine and carbon monoxide. Where the phosgene equivalent is employed, carbon monoxide is used in excess over the amount required to give phosgene. The process is carried out in the presence of palladium and/or rhodium catalysts, at temperatures of above about 75 DEG C. and pressures of above about 100 atmospheres.
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