2',5'-DIHYDROXYPROPIOPHENONE
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2',5'-DIHYDROXYPROPIOPHENONE 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'-DIHYDROXYPROPIOPHENONE 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'-DIHYDROXYPROPIOPHENONE 준비 용품 및 원자재
원자재
준비 용품
2',5'-DIHYDROXYPROPIOPHENONE 공급 업체
글로벌( 60)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| sgtlifesciences pvt ltd | +8617013299288 |
dj@sgtlifesciences.com | China | 12382 | 58 |
| Hangzhou MolCore BioPharmatech Co.,Ltd. | +86-057181025280; +8617767106207 |
sales@molcore.com | China | 49739 | 58 |
| Aladdin Scientific | +1-833-552-7181 |
sales@aladdinsci.com | United States | 57511 | 58 |
| Amadis Chemical Company Limited | 571-89925085 |
sales@amadischem.com | China | 131981 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 |
sale@mainchem.com | China | 32360 | 55 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 821-50328103-801 18930552037 |
3bsc@sina.com | China | 15848 | 69 |
| Alfa Aesar | 400-6106006 |
saleschina@alfa-asia.com | China | 30132 | 84 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 |
sj_scrc@sinopharm.com | China | 9823 | 79 |
| Guangzhou Jhd Chemical Reagent Co., Ltd. | 020-84383047 |
sales@jhd.com.cn | China | 9190 | 65 |
| Bejing Famous Pharmaceutical Technology Co., Ltd. | 13331045123 |
1963319514@qq.com | China | 14240 | 58 |
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