Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Hydrochloric Acid → 8-Bromo-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylic acid
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Hydrochloric Acid | HCID 313 | — |
| 반응물 | Methanol | HCID 887 | — |
| 반응물 | Sodium Hydroxide | HCID 14798 | — |
| 반응물 | Ethyl 8-bromo-4,5-dihydrobenzo[2,3]oxepino[4,5-D]thiazole-2-carboxylate | HCID 57900431 | — |
| 용매 | Water | HCID 962 | — |
| 용매 | Tetrahydrofuran | HCID 8028 | — |
| 생성물 | 8-Bromo-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylic acid | HCID 57900166 | — |
반응 단계
To a solution of 8-bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid ethyl ester from Example 21 (518 mg) in tetrahydrofuran (10 ml) was added a solution of sodium hydroxide (117 mg) in water (2 mL). Methanol (5 mL) was also added to aid dissolution. After 2 hours, the reaction mixture was acidified with HCl (2M) and the reaction mixture was then extracted with dichloromethane, dried (MgSO4) and the solvent removed in vacuo to yield 8-bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-2-carboxylic acid.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US08846762B2 |
| 출처 데이터셋 | uspto-grants-2014_09 |
| ORD ID | ord-7d86b101c94e4077ab4ac457b9fac1a7 |
| 출처 메모 | uspto-grants-2014_09 |