Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Squaric acid → HCID 178426473, 화합물
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Squaric acid | HCID 17913 | — |
| 반응물 | Ethanol, 2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]- | HCID 10703227 | — |
| 용매 | Acetone | HCID 180 | — |
| 생성물 | HCID 178426473 | HCID 178426473 | 66.8% |
반응 단계
5.7 g of quadratic acid (0.05 mole) and 50.1 g of 97.7% strength 4-(2-hydroxyethyl)amino-2,2,6,6-tetramethylpiperidine (0.244 mole) were heated for five hours to 200° C. After cooling, the reaction product was boiled with 150 cc of acetone and, after another cooling step, vacuum-filtered and washed with acetone, thus obtaining 16.0 g. Yield: 66.8% of theory, mp 309°-311° C. Extinction (g/l.cm) at 336 nm: 97.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04537924 |
| 출처 데이터셋 | uspto-grants-1985_08 |
| ORD ID | ord-dcc3b2938fb3417fae0dc4739194ccc1 |
| 출처 메모 | uspto-grants-1985_08 |