반응 #94168
ord-b817d0b0a04245fc862259abd8f7a6b3
반응 방정식
반응 조건
상세 조건
See reaction.notes.procedure_details.
후처리
- 1농축using more concentrated
- 2기타reaction media
- 3기타the reaction
실험 절차
Following the general procedure of Example 9, but using more concentrated reaction media, a slurry of 8.22 parts terephthalic acid in 50 parts dry dichloromethane was added to a stirred mixture of 8.85 parts pyridine and 10.46 parts phosgene in 80 parts dry dichloromethane at 24° to 30° C. The ratio of equivalents of pyridine base/COOH acid group was 1.13. After carrying out the reaction and esterifying the resulting diacid chloride by the procedure as described in Example 1, a quantitative yield of dimethyl terephthalate was formed corresponding to a quantitative yield of terephthaloyl chloride formed initially in the reaction.