Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
5-Bromofuran-2-carbaldehyde → 1-(5-Bromofurfurylideneamino)-2,3-dioxo-piperazine
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 5-Bromofuran-2-carbaldehyde | HCID 600328 | — |
| 반응물 | 1-Aminopiperazine-2,3-dione | HCID 22184768 | — |
| 용매 | Acetic Acid | HCID 176 | — |
| 생성물 | 1-(5-Bromofurfurylideneamino)-2,3-dioxo-piperazine | HCID 53821497 | 38.5% |
반응 단계
1.9 pts. by wt. of 5-bromofurfural, 1.3 pts. by wt. of 1-amino-2,3-dioxo-piperazine and 7 pts. by vol. of glacial acetic acid were warmed to 90° for 10 minutes and then left for 30 minutes at RT. The precipitate is filtered off, washed with 3 pts. by vol. of glacial acetic acid and recrystallised from dimethylformamide, with the addition of animal charcoal. 1.1 pts. by wt. (38.5%) of 1-(5-bromofurfurylideneamino)-2,3-dioxo-piperazine are obtained as yellowish crystals of decomp. pt. 220°.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04182762 |
| 출처 데이터셋 | uspto-grants-1980_01 |
| ORD ID | ord-cb56760e2339460492f6caaafb119889 |
| 출처 메모 | uspto-grants-1980_01 |