2',5'-디하이드록시프로피오페논
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2',5'-디하이드록시프로피오페논 속성
- 녹는점
- 95-99 °C
- 끓는 점
- 254.38°C (rough estimate)
- 밀도
- 1.1708 (rough estimate)
- 굴절률
- 1.5500 (estimate)
- 산도 계수 (pKa)
- 8.96±0.48(Predicted)
- BRN
- 1938824
- CAS 데이터베이스
- 938-46-5(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
2',5'-디하이드록시프로피오페논 C화학적 특성, 용도, 생산
화학적 성질
yellowish crystalline powder제조 방법
Preparation by Fries rearrangement of quinol dipropionate (hydroquinone dipropionate),with aluminium chloride without solvent at 130–140° for 4 h (75%), ? at 142° for 30 min (80%), at 160–165° for 3 h (good yields) or at 190–200° for 90 min (60%)
by using various quantities of aluminium chloride at 180° for 2 h (to see ? below)
with aluminium chloride (2 equiv) in nitromethane at 20° for a week (7%) ? or in nitrobenzene (24%)
with boron trifluoride complex (BF? 3-OBu2) at reflux for 1 h (42%)
by using titanium tetrachloride (2 equiv) at 130° for 2 h gave only 6% yield
Also obtained by treatment of
hydroquinone dipropionate with aluminium chloride in the presence of hyd-? roquinone (61%)
2-hydroxy-5-(propionyloxy)propiophenone with aluminium chloride (5 equiv) ? at 180° for 30 min in the presence of hydroquinone (57%)
Also obtained by acylation of hydroquinone with propionic acid
in the presence of boron trifluoride in ethylene dichloride at 50–55° (59%) ?, in tetrachloroethane at 90–95° for 5 h (70%) or at 50° for 4 h (70%) or without solvent (67%) at 80° for 2 h (54%) or at 125° for 2 h (71%)
in the presence of zinc chloride at 190° few min (Nencki reaction)
in the presence of 70% perchloric acid at reflux for 1 h (12%)
Also obtained by Friedel–Crafts acylation of hydroquinone with propionyl chlo-ride in nitrobenzene in the presence of aluminium chloride (40%)
Also obtained from 2-hydroxy-5-(propionyloxy)propiophenone; the ester group elimination on hydrolysis with 85% sulfuric acid at r.t. or by treatment with by aluminium chloride
Also obtained by reaction of benzoquinone (2.5 equiv) with 2-oxobutanoic acid in aqueous acetonitrile or an acetonitrile/methylene chloride mixture (91%).
2',5'-디하이드록시프로피오페논 준비 용품 및 원자재
원자재
준비 용품
2',5'-디하이드록시프로피오페논 공급 업체
글로벌( 69)공급 업체
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| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 |
sj_scrc@sinopharm.com | China | 9815 | 79 |
2',5'-디하이드록시프로피오페논 관련 검색:
프로피오페논 2,3-디메톡시벤즈알데히드 3',4'-디하이드록시프로피오페논 시칼킨 6-히드록시플라바논 글리시테인 2',5'-디하이드록시프로피오페논 2,3-다이하이드로-9,10-다이하이드록시-1,4-안트라센디온 2,5-디메톡시프로피오페논 시코닌 스티그마텔린 6,7-DIHYDROXY-4'-메톡시이소플라본 6,7-디메톡시-2,2-디메틸-4-클로로마논 2',4'-디히드록시프로피오페논옥심 2-브로모-3-4-디하이드록시프로피오페논 2-팔미토일하이드로퀴논 3-클로로-1-(2,5-디메톡시페닐)프로판-1-온
2',4',5'-Trihydroxybutyrophenone