Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Phosgene → Dimethyl terephthalate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Phosgene | HCID 6371 | — |
| 반응물 | Terephthaloyl chloride | HCID 7488 | — |
| 반응물 | Terephthalic Acid | HCID 7489 | — |
| 반응물 | 4-Methylpyridine | HCID 7963 | — |
| 반응물 | 2-Methylpyridine | HCID 7975 | — |
| 용매 | Dichloromethane | HCID 6344 | — |
| 생성물 | Dimethyl terephthalate | HCID 8441 | 100% |
반응 단계
Following the general procedure of Example 1 for the preparation of the diacid chloride, 9.06 parts of terephthalic acid were added to a mixture of 11.82 parts of 4-methylpyridine and 14.1 parts phosgene in 200 parts dry dichloromethane at 25° to 30° C. The ratio of equivalents of methylpyridine base/COOH acid group was 1.16. After carrying out the reaction and esterifying the resulting diacid chloride by the procedure described in Example 1, a 100% yield of dimethyl terephthalate was obtained corresponding to a quantitive yield of terephthaloyl chloride formed initially in the reaction.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04129594 |
| 출처 데이터셋 | uspto-grants-1978_12 |
| ORD ID | ord-99098360bf6e490090e32b54db424b8d |
| 출처 메모 | uspto-grants-1978_12 |