Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Hydrazine → 2,3,5,6-Tetrachloropyridine
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Hydrazine | HCID 9321 | — |
| 반응물 | Pentachloropyridine | HCID 16584 | — |
| 반응물 | 2,6-Dichloropyridine | HCID 16989 | — |
| 반응물 | 2,3,6-Trichloropyridine | HCID 23016 | — |
| 반응물 | Aluminium lithium hydride | HCID 21226445 | — |
| 용매 | Sodium Hydroxide | HCID 14798 | — |
| 용매 | EtOH triethylamine | HCID 22663003 | — |
| 생성물 | 2,3,5,6-Tetrachloropyridine | HCID 16990 | — |
반응 단계
2,3,6-Trichloropyridine is obtained, for example, in the chlorination of 2,6-dichloropyridine (EP Patent 239,904), in the treatment of pentachloropyridine with hydrazine in ethanol/triethylamine and sodium hydroxide solution (U.S. Pat. No. 3,947,457), and selectively in the reduction of pentachloropyridine with lithium aluminum hydride (F. Binns, S.M. Roberts, H. Suschitzky, J. Chem. Soc. C, (1970) (10), 1375-1380; J. Chem. Soc. D (1969) (20), 1211-1212). 2,3,5,6-Tetrachloropyridine can also be obtained in this way if less reductant is employed.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US05468863 |
| 출처 데이터셋 | uspto-grants-1995_11 |
| ORD ID | ord-5f39220aa04c43c5b212c26e61f4b5d1 |
| 출처 메모 | uspto-grants-1995_11 |