참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Hydrochloric Acid | HCID 313 | — |
| 반응물 | Acetylacetone | HCID 31261 | — |
| 반응물 | HCID 178418324 | HCID 178418324 | — |
| 용매 | Water | HCID 962 | — |
| 생성물 | (4,6-Dimethylpyrimidin-2-yl)cyanamide | HCID 521618 | 70% |
반응 단계
A mixture of 42 g (0.5 mole) of cyanoguanidine ("dicyandiamide") and 50 g (0.5 mole) of 2,4-pentanedione ("acetylacetone") is heated at 120° C. for 15 hours. After the reaction mixture has cooled, 500 ml of water are added and the solution is acidified with hydrochloric acid at 0° C. to 10° C. The product thereby obtained as crystals is isolated by filtration with suction. 51.8 g (70% of theory) of 2-cyanoamino-4,6-dimethyl-pyrimidine of melting point 205° C. are obtained.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US04704158 |
|---|
| 출처 데이터셋 | uspto-grants-1987_11 |
|---|
| ORD ID | ord-1ec1e42527784152a02fb76cd658dd51 |
|---|
| 출처 메모 | uspto-grants-1987_11 |
|---|
