참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Hydroxyurea | HCID 3657 | — |
| 반응물 | Ammonium Chloride | HCID 25517 | — |
| 반응물 | 2,4-Heptanedione, 6-methyl- | HCID 76354 | — |
| 용매 | Hydrochloric Acid | HCID 313 | — |
| 용매 | Methanol | HCID 887 | — |
| 생성물 | HCID 178425012 | HCID 178425012 | 58% |
반응 단계
0.20 mol (15.21 g) hydroxy urea were dissolved in 300 ml of M HCl, 300 ml of methanol were added, and 0.20 mol (28.44 g) 6-methyl-2,4-heptanedione were added dropwise while cooling at −12 to −10° C. The solution was allowed to warm slowly to room temperature and stirred over night, then evaporated to dryness. The residue was suspended with 200 ml of acetone, the mixture cooled to below 0° C. in an ice/ethanol bath, the solid filtered off and washed with a little ice-cold acetone. After drying 7.23 g of a product was obtained, which contained 58% of the title compound and 42% of the by-product ammonium chloride.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 특허 번호 | US09422247B2 |
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| 출처 데이터셋 | uspto-grants-2016_08 |
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| ORD ID | ord-7a2e6175695c4873bd703fc7e5ba2b7d |
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| 출처 메모 | uspto-grants-2016_08 |
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