Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Phosgene → 5-Methylbenzimidazol-2-one
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Phosgene | HCID 6371 | — |
| 반응물 | 3,4-Diaminotoluene | HCID 10332 | — |
| 반응물 | Sodium Hydroxide | HCID 14798 | — |
| 용매 | Water | HCID 962 | — |
| 생성물 | 5-Methylbenzimidazol-2-one | HCID 20064386 | 98.5% |
반응 단계
53 g (0.54 mol) of phosgene are passed into 61 g (0.5 mol) of 4-methyl-1,2-diaminobenzene in 450 ml of water and the pH is simultaneously kept constant at 7.2 with 86 g (1.08 mol) of 50% strength aqueous sodium hydroxide solution. After cooling, 72 g of precipitated 5-methyl-benzimidazol-2-one of melting point 290° C. are obtained, which corresponds to a yield of 97% of theory.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US05003079 |
| 출처 데이터셋 | uspto-grants-1991_03 |
| ORD ID | ord-ff9a0e377a6e4b9ea13ba3f899a87854 |
| 출처 메모 | uspto-grants-1991_03 |