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Cas:13739-02-1
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inquiryWhy is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c
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inquiryAnalysis tests Standard Results Appearance Yellowish Crystallization Hangzhou Dingyan Chem is a leading manufacturer and supplie
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inquiryDiacerein CAS 13739-02-1 Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in distributing th
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inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
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inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
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inquiryADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,
13739-02-1 - Physico-chemical Properties Molecular Formula C19H12O8 Molar Mass 368.29 Density 1.491±0.06 g/cm3(Predicted) Melting Point 217-2180C Boling Point 631.5±55.0 °
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inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
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LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.
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Cas:13739-02-1
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inquiryProduct name Diacerein Formula C19H12O8 CAS 13739-02-1 Appearance Yellowfine powde
Appearance:Yellow powder Storage:R.T Package:25kg/drum Application:API Transportation:Express/Sea/Air Port:Any port in China
Cas:13739-02-1
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Cas:13739-02-1
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inquiry1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Name: Diacerein Structure: Formula: C19H12O8 Molecular Weight : 368.29 Synonyms: 1,8-DIACETOXY-3-CARBOXYANTHRAQUINONE;DIACEREIN;DIACERHEIN;DIACETYLRHEIN;9,10-dih
Cas:13739-02-1
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Cas:13739-02-1
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inquiryProduct Name: Diacerein CAS: 13739-02-1 MF: C19H12O8 MW: 368.29 EINECS: 237-310-2 Mol File: 13739-02-1.mol Diacerein Structure Diacerein Chemical Properties Melting point 217-2180C Boiling point 631.5±55.0 °C(Pr
Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present
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Cas:13739-02-1
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Product Detail Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,
Cas:13739-02-1
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Cas:13739-02-1
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Cas:13739-02-1
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inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Conditions | Yield |
---|---|
With pyridine; dmap | 100% |
With dmap; triethylamine In acetic anhydride at 20℃; for 1h; | 95% |
With pyridine at 120℃; for 6h; | 93% |
diacetylrhein
Conditions | Yield |
---|---|
With sodium chlorite; sodium dihydrogenphosphate dihydrate; water In dimethyl sulfoxide; acetone for 9h; | 54.6% |
With chromium trioxide-pyridine complex In pyridine at 0 - 5℃; for 6h; Oxidation; | 5 mg |
1,8-diacetoxy-3-methyl-anthraquinone
acetic anhydride
acetic acid
diacetylrhein
diacetylrhein
Conditions | Yield |
---|---|
With chromium(VI) oxide; acetic anhydride; acetic acid |
1,8,9-triacetoxy-3-methyl-anthracene
acetic anhydride
acetic acid
diacetylrhein
diacetylrhein
Conditions | Yield |
---|---|
With acetic anhydride; chromic acid; acetic acid |
(2,4-dibromo-6-hydroxyphenyl)-(2-hydroxyphenyl)methanone
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 87 percent / K2CO3 / dimethylformamide / 12 h / 80 °C 2: 92 percent / Et3N; (dppf)PdCl2; dppf / dimethylformamide / 18 h / 80 °C / 750.06 Torr 3: KOH / methanol / 48 h / 60 °C 4: 414 mg / H2 / Pd/C / ethanol / 12 h / 20 °C / 750.06 Torr 5: 50 percent / AlCl3; NaCl / 2 h / 150 °C 6: 75 percent / Et3N / 1 h / 20 °C View Scheme |
5-hydroxy-4-(2-hydroxybenzoyl)isophthalic acid
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 50 percent / AlCl3; NaCl / 2 h / 150 °C 2: 75 percent / Et3N / 1 h / 20 °C View Scheme |
(2-benzyloxy-4,6-dibromophenyl)-(2-benzyloxyphenyl)methanone
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 92 percent / Et3N; (dppf)PdCl2; dppf / dimethylformamide / 18 h / 80 °C / 750.06 Torr 2: KOH / methanol / 48 h / 60 °C 3: 414 mg / H2 / Pd/C / ethanol / 12 h / 20 °C / 750.06 Torr 4: 50 percent / AlCl3; NaCl / 2 h / 150 °C 5: 75 percent / Et3N / 1 h / 20 °C View Scheme |
5-benzyloxy-4-(2-benzyloxybenzoyl)isophthalic acid dimethyl ester
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: KOH / methanol / 48 h / 60 °C 2: 414 mg / H2 / Pd/C / ethanol / 12 h / 20 °C / 750.06 Torr 3: 50 percent / AlCl3; NaCl / 2 h / 150 °C 4: 75 percent / Et3N / 1 h / 20 °C View Scheme |
5-benzyloxy-4-(2-benzyloxy-benzoyl)-isophthalic acid
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 414 mg / H2 / Pd/C / ethanol / 12 h / 20 °C / 750.06 Torr 2: 50 percent / AlCl3; NaCl / 2 h / 150 °C 3: 75 percent / Et3N / 1 h / 20 °C View Scheme |
sennidin B
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: chromium (VI)-oxide; acetic acid 2: sulfuric acid View Scheme |
(+)-4,5,4',5'-tetrahydroxy-10,10'-dioxo-9,10,9',10'-tetrahydro-[9,9']bianthryl-2,2'-dicarboxylic acid
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: chromium (VI)-oxide; acetic acid 2: sulfuric acid View Scheme |
C6H15N*C19H12O8
diacetylrhein
Conditions | Yield |
---|---|
With hydrogenchloride In water; acetone | |
With hydrogenchloride In water; butanone pH=1; |
triacetyl aloe-emodin
diacetylrhein
Conditions | Yield |
---|---|
In ethanol; water |
acetic anhydride
diacetylrhein
Conditions | Yield |
---|---|
iron(III) chloride at 65℃; for 1.5h; | |
iron(III) chloride at 65℃; for 1.5h; |
potassium salt of diacerein
diacetylrhein
Conditions | Yield |
---|---|
With sulfuric acid In ethanol; water; acetone pH=4.5 - 5; |
1,8-dihydroxy-3-hydroxymethyl-9,10-anthracenedione
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 4 h / 30 °C 2: sodium dihydrogenphosphate; sodium chlorite / dimethyl sulfoxide; water / 4.5 h / 5 - 25 °C 3: sulfuric acid / 3 h / 5 - 35 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / 1-methyl-pyrrolidin-2-one / 2 h / 70 °C 2: triethylamine / dichloromethane / 1.4 h / 15 - 20 °C 3: sodium chlorite; sodium dihydrogenphosphate dihydrate; water / dimethyl sulfoxide; acetone / 9 h View Scheme | |
Multi-step reaction with 3 steps 1: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / 1-methyl-pyrrolidin-2-one / 2 h / 70 °C 2: triethylamine / dichloromethane / 1.4 h / 15 - 20 °C 3: sodium chlorite; sodium dihydrogenphosphate dihydrate; water / dimethyl sulfoxide; acetone / 9 h View Scheme |
4,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carbaldehyde
diacetylrhein
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / dichloromethane / 1.4 h / 15 - 20 °C 2: sodium chlorite; sodium dihydrogenphosphate dihydrate; water / dimethyl sulfoxide; acetone / 9 h View Scheme |
diacetylrhein
1,8-dihydroxy-3-carboxy-anthraquinone
Conditions | Yield |
---|---|
With sodium carbonate In water | 100% |
Stage #1: diacetylrhein With water; sodium carbonate Stage #2: With hydrogenchloride In water pH=2; | 100% |
With sodium hydroxide In water for 0.5h; | 60% |
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With thionyl chloride; N,N-dimethyl-formamide In dichloromethane at 55℃; for 2h; Stage #2: With ammonium hydroxide | 95% |
diacetylrhein
4,5-diacetoxy-9,10-dioxo-9,10-dihydro-anthracene-2-carbonyl chloride
Conditions | Yield |
---|---|
With pyridine; thionyl chloride In dichloromethane at 0 - 20℃; | 92% |
With thionyl chloride | |
With pyridine; thionyl chloride In 1,2-dimethoxyethane at 80℃; |
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol at 60 - 70℃; pH=7 - 8; | 89% |
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(2-methoxyphenyl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 82% |
Stage #1: diacetylrhein With benzotriazol-1-ol In methanol at 20℃; for 0.0833333h; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol for 0.0833333h; Stage #3: α-O,O'-diethyl amino(2-methoxyphenyl)methylphosphonate In methanol; N,N-dimethyl-formamide at 35℃; for 4h; | 82% |
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol In butan-1-ol at 20℃; for 0.0833333h; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In butan-1-ol for 0.1h; Stage #3: α-O,O'-diethyl amino(naphth-1-yl)methylphosphonate In butan-1-ol at 50℃; for 4h; | 82% |
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(naphth-1-yl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
diacetylrhein
diethyl [amino(4-methylphenyl)methyl]phosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: diethyl [amino(4-methylphenyl)methyl]phosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 81% |
Stage #1: diacetylrhein With benzotriazol-1-ol In chloroform at 20℃; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In chloroform Stage #3: diethyl [amino(4-methylphenyl)methyl]phosphonate In chloroform at 20℃; for 4h; | 81% |
diethyl 1-aminophenylmethylphosphonate
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol In methanol at 20℃; for 0.166667h; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol for 0.0833333h; Stage #3: diethyl 1-aminophenylmethylphosphonate In methanol at 20℃; for 4h; | 81% |
diacetylrhein
α-O,O'-diethyl amino(3-fluorophenyl)methylphosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol In methanol at 20℃; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol Stage #3: α-O,O'-diethyl amino(3-fluorophenyl)methylphosphonate In methanol at 10℃; for 5h; | 81% |
diacetylrhein
α-O,O'-diethyl amino(2-fluorophenyl)methylphosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(2-fluorophenyl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
Stage #1: diacetylrhein With benzotriazol-1-ol In ethyl acetate at 20℃; for 0.0833333h; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In ethyl acetate for 0.216667h; Stage #3: α-O,O'-diethyl amino(2-fluorophenyl)methylphosphonate In ethyl acetate at 20℃; for 4h; | 80% |
diacetylrhein
α-O,O'-diethyl amino(2-chlorophenyl)methylphosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(2-chlorophenyl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
Stage #1: diacetylrhein With benzotriazol-1-ol In N,N-dimethyl-formamide at 20℃; for 0.1h; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide for 0.0833333h; Stage #3: α-O,O'-diethyl amino(2-chlorophenyl)methylphosphonate In ethyl acetate; N,N-dimethyl-formamide at 20℃; for 4h; | 80% |
diacetylrhein
diethyl 1-amino(p-chlorophenyl)methylphosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: diethyl 1-amino(p-chlorophenyl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
Stage #1: diacetylrhein With benzotriazol-1-ol In methanol; ethyl acetate at 20℃; for 0.0833333h; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol; ethyl acetate for 0.0833333h; Stage #3: diethyl 1-amino(p-chlorophenyl)methylphosphonate In methanol; ethyl acetate at 20℃; for 3.5h; | 80% |
diacetylrhein
[Amino-(4-bromo-phenyl)-methyl]-phosphonic acid diethyl ester
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: [Amino-(4-bromo-phenyl)-methyl]-phosphonic acid diethyl ester In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
Stage #1: diacetylrhein With benzotriazol-1-ol In dimethyl sulfoxide at 20℃; for 0.166667h; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide for 0.166667h; Stage #3: [Amino-(4-bromo-phenyl)-methyl]-phosphonic acid diethyl ester In dimethyl sulfoxide at 20℃; for 4h; | 80% |
diacetylrhein
diethyl [1-amine(4-methoxyphenyl)methyl]phosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: diethyl [1-amine(4-methoxyphenyl)methyl]phosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
Stage #1: diacetylrhein With benzotriazol-1-ol In dimethyl sulfoxide at 20℃; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide Stage #3: diethyl [1-amine(4-methoxyphenyl)methyl]phosphonate In dimethyl sulfoxide at 60℃; for 3h; | 80% |
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(anthracen-1-yl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 80% |
Stage #1: diacetylrhein With benzotriazol-1-ol In methanol at 20℃; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol Stage #3: α-O,O'-diethyl amino(anthracen-1-yl)methylphosphonate In methanol at 20℃; for 5h; | 80% |
diacetylrhein
α-O,O'-diethyl amino(4-fluorophenyl)methylphosphonate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(4-fluorophenyl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 79% |
Stage #1: diacetylrhein With benzotriazol-1-ol In dichloromethane; chloroform at 20℃; for 0.133333h; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane; chloroform for 0.05h; Stage #3: α-O,O'-diethyl amino(4-fluorophenyl)methylphosphonate In dichloromethane; chloroform at 20℃; for 4.5h; | 79% |
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dimethyl sulfoxide at 0℃; for 0.25h; Stage #2: α-O,O'-diethyl amino(2-bromophenyl)methylphosphonate In dimethyl sulfoxide at 0 - 20℃; for 10h; | 79% |
Stage #1: diacetylrhein With benzotriazol-1-ol In N,N-dimethyl-formamide at 20℃; for 0.216667h; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide for 0.216667h; Stage #3: α-O,O'-diethyl amino(2-bromophenyl)methylphosphonate In N,N-dimethyl-formamide at 20℃; for 4h; | 79% |
diacetylrhein
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With benzotriazol-1-ol In methanol at 20℃; for 0.166667h; Cooling with ice; Stage #2: With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In methanol for 0.0833333h; Stage #3: α-O,O'-diethyl amino(3-bromophenyl)methylphosphonate In methanol at 20℃; for 4h; | 79% |
4-nitrobenzyl chloride
diacetylrhein
3-((4-nitrobenzyloxy)carbonyl)-9,10-dioxo-9,10-dihydroanthracene-1,8-diyl diacetate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With chloroformic acid ethyl ester; triethylamine In dichloromethane at 0℃; for 0.5h; Stage #2: 4-nitrobenzyl chloride In dichloromethane for 0.75h; Inert atmosphere; | 78.3% |
Conditions | Yield |
---|---|
Stage #1: thymol; diacetylrhein With pyridine; toluene-4-sulfonic acid; dicyclohexyl-carbodiimide at 20℃; for 72h; Stage #2: With acetic acid at 0 - 5℃; | 73.54% |
pyrrolidine
diacetylrhein
9,10-dioxo-3-(pyrrolidine-1-carbonyl)-9,10-dihydroanthracene-1,8-diyl diacetate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With chloroformic acid ethyl ester; triethylamine In dichloromethane at 0℃; for 0.5h; Stage #2: pyrrolidine In dichloromethane for 0.75h; Inert atmosphere; | 56.9% |
diacetylrhein
Cyclopentamine
3-(cyclopentylcarbamoyl)-9,10-dioxo-9,10-dihydroanthracene-1,8-diyl diacetate
Conditions | Yield |
---|---|
Stage #1: diacetylrhein With chloroformic acid ethyl ester; triethylamine In dichloromethane at 0℃; for 0.5h; Stage #2: Cyclopentamine In dichloromethane for 0.75h; Inert atmosphere; | 53% |
diazomethane
diacetylrhein
4,5-diacetoxy-9,10-dioxo-9,10-dihydro-anthracene-2-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
Reaktion ueber mehrere Stufen; |
Conditions | Yield |
---|---|
With sulfuric acid |
ethanol
diacetylrhein
Ethyl 9,10-dihydro-4,5-dihydroxy-9,10-dioxo-2-anthracenecarboxylate
Conditions | Yield |
---|---|
With sulfuric acid |
diacetylrhein
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid; tin(ll) chloride |
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