Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Sulfuric Acid → 7-Hydroxy-4,6-dimethyl-2H-1-benzopyran-2-one
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Sulfuric Acid | HCID 1118 | — |
| 반응물 | Ethyl Acetoacetate | HCID 8868 | — |
| 반응물 | 1,3-Benzenediol, 4-methyl- | HCID 10333 | — |
| 생성물 | 7-Hydroxy-4,6-dimethyl-2H-1-benzopyran-2-one | HCID 10797739 | — |
반응 단계
A solution of 2,4-dihydroxytoluene (10.0 g) in ethylacetoacetate (12 ml) was poured in small portion into conc. H2SO4 (26 ml), chilling in an ice bath. After the addition was completed the solid obtained was separated by filtration, washed several times with water up to neutrality of the washings, dried and crystallized from MeOH, yielding 4,6-dimethyl-7-hydroxycoumarin (III) (10.64 g; m.p. 273° C.). ##STR9##
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US05001147 |
| 출처 데이터셋 | uspto-grants-1991_03 |
| ORD ID | ord-d9d006fbc7f34f76bf56b49995c94735 |
| 출처 메모 | uspto-grants-1991_03 |