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inquiryJ&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
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inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
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inquirybulk productiongoods in stockswe have the best competitive price in the marketmeantime,we are committed to service to our every customer Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical
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inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquiryAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
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inquirybest seller Application:API
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inquiry4-Chlorophthalic acid monosodium salt cas 56047-23-5Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquiryhight degree of purityAppearance:COA mentioned Storage:COA mentioned Package:Standard or custom package Application:hight degree of purity Transportation:Express/Sea/Air Port:Any port in China
Changzhou Helios Biochemical Co., Ltd is a leading manufacturer and supplier for medical intermediates and pesticide intermediates . We specialize in custom synthesis of benzene ring, pyridine and pyrimidine derivatives to help customers to accelerat
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inquiryphthalic anhydride
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Stage #1: phthalic anhydride With sodium chlorate; sodium hydroxide In water at 28 - 30℃; for 17h; Stage #2: With hydrogenchloride In water at 30℃; pH=Ca. 5.5; |
monosodique de l'acide chloro-4 phtalique
4-chlorophthalic anhydride
Conditions | Yield |
---|---|
With thionyl chloride for 2h; Heating; | 70% |
With sulfuric acid In acetic anhydride for 3h; Heating; | |
With thionyl chloride for 2h; Reflux; |
ethanol
monosodique de l'acide chloro-4 phtalique
4-chlorodiethylphthalate
Conditions | Yield |
---|---|
With hydrogenchloride at 80℃; for 48h; Esterification; | 62% |
monosodique de l'acide chloro-4 phtalique
4-chloro-2-hydroxy-1(H)-isoindole-1,3-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 62 percent / HCl(g) / 48 h / 80 °C 2: hydroxylamine; KOH / methanol / 8 h / -70 °C / RT, 72 h View Scheme |
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 62 percent / HCl(g) / 48 h / 80 °C 2: hydroxylamine; KOH / methanol / 8 h / -70 °C / RT, 72 h 3: 48 percent / NaHCO3 / H2O / 3 h / 0 °C View Scheme |
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 62 percent / HCl(g) / 48 h / 80 °C 2: hydroxylamine; KOH / methanol / 8 h / -70 °C / RT, 72 h 3: 56 percent / NaHCO3 / H2O / 3 h / 0 °C View Scheme |
monosodique de l'acide chloro-4 phtalique
4-chlorophthalimide
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 70 percent / thionylchloride / 2 h / Heating 2: 98 percent / urea / 0.67 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: thionyl chloride / 2 h / Reflux 2: formamide / 1 h / 150 °C View Scheme |
monosodique de l'acide chloro-4 phtalique
6-chlorophthalide
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 83 percent / NaBH4 / methanol View Scheme |
monosodique de l'acide chloro-4 phtalique
5-chloro-1H-indene-1,3(2H)-dione
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 2 h / Heating 3: 1.) SOCl2 / 1.) reflux; 2.) benzene, reflux, 1.5 h 4: Na / reflux 2 h, then r.t., 15 h View Scheme |
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 2 h / Heating View Scheme |
monosodique de l'acide chloro-4 phtalique
4-chlorodiethylphthalate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 2 h / Heating 3: 1.) SOCl2 / 1.) reflux; 2.) benzene, reflux, 1.5 h View Scheme |
monosodique de l'acide chloro-4 phtalique
chloro-5 (dihydro-1,4 pyridinylidene-4)-2 indanedione-1,3
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 57.1 percent / molecular sieves 3 Angstroem / diphenyl ether / 24 h / Heating View Scheme | |
Multi-step reaction with 3 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 83 percent / NaBH4 / methanol 3: 62.3 percent / NaOMe, ethyl propionate / methanol / 5 h / Heating View Scheme |
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 2 h / Heating 3: 1.) SOCl2 / 1.) reflux; 2.) benzene, reflux, 1.5 h 4: Na / reflux 2 h, then r.t., 15 h 5: 38.1 percent / acetic anhydride / 24 h / Heating View Scheme |
monosodique de l'acide chloro-4 phtalique
5-Chloro-2-(1-ethyl-1H-pyridin-4-ylidene)-indan-1,3-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 57.1 percent / molecular sieves 3 Angstroem / diphenyl ether / 24 h / Heating 3: 89.2 percent / 50percent NaH / dimethylsulfoxide / 8 h / Ambient temperature View Scheme | |
Multi-step reaction with 4 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 83 percent / NaBH4 / methanol 3: 62.3 percent / NaOMe, ethyl propionate / methanol / 5 h / Heating 4: 89.2 percent / 50percent NaH / dimethylsulfoxide / 8 h / Ambient temperature View Scheme |
monosodique de l'acide chloro-4 phtalique
(chloro-5 isopropyl-1 dihydro-1,4 pyridinylidene-4)-2 indanedione-1,3
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 2 h / Heating 3: 1.) SOCl2 / 1.) reflux; 2.) benzene, reflux, 1.5 h 4: Na / reflux 2 h, then r.t., 15 h 5: 1.) 10N NaOH; 2.) O2, air / 1.) MeOH, r.t., 8 d View Scheme |
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 2 h / Heating 3: 1.) SOCl2 / 1.) reflux; 2.) benzene, reflux, 1.5 h 4: Na / reflux 2 h, then r.t., 15 h 5: 38.1 percent / acetic anhydride / 24 h / Heating 6: 36 percent / acetonitrile / 0.5 h / Heating View Scheme |
monosodique de l'acide chloro-4 phtalique
5-Chloro-2-[1-(2-methoxy-ethyl)-1H-pyridin-4-ylidene]-indan-1,3-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 57.1 percent / molecular sieves 3 Angstroem / diphenyl ether / 24 h / Heating 3: 92 percent / 50percent NaH / dimethylsulfoxide / 8 h / Ambient temperature View Scheme | |
Multi-step reaction with 4 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 83 percent / NaBH4 / methanol 3: 62.3 percent / NaOMe, ethyl propionate / methanol / 5 h / Heating 4: 92 percent / 50percent NaH / dimethylsulfoxide / 8 h / Ambient temperature View Scheme |
monosodique de l'acide chloro-4 phtalique
5-Chloro-2-[1-(2-piperidin-1-yl-ethyl)-1H-pyridin-4-ylidene]-indan-1,3-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 57.1 percent / molecular sieves 3 Angstroem / diphenyl ether / 24 h / Heating 3: 59.9 percent / 50percent NaH / dimethylsulfoxide / 8 h / Ambient temperature View Scheme | |
Multi-step reaction with 4 steps 1: H2SO4 / acetic anhydride / 3 h / Heating 2: 83 percent / NaBH4 / methanol 3: 62.3 percent / NaOMe, ethyl propionate / methanol / 5 h / Heating 4: 59.9 percent / 50percent NaH / dimethylsulfoxide / 8 h / Ambient temperature View Scheme |
pyrographite
monosodique de l'acide chloro-4 phtalique
4-chlorophthalic acid
Conditions | Yield |
---|---|
With sulfuric acid In water | |
With sulfuric acid In water |
monosodique de l'acide chloro-4 phtalique
4-(5-chloro-1,3-dioxo-2-isoindolinyl)-3-(4-chlorophenyl)butanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: thionyl chloride / 2 h / Reflux 2: sodium acetate / acetic acid / 20 h / Reflux View Scheme |
monosodique de l'acide chloro-4 phtalique
N-[(5-chloro-1,3-dioxo-2-isoindolinyl)methyl]-N-(4-chlorophenyl)glycine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: thionyl chloride / 2 h / Reflux 2.1: formamide / 1 h / 150 °C 3.1: ethanol 3.2: 3 h / Reflux View Scheme |
monosodique de l'acide chloro-4 phtalique
4-chloro-phthaloyl dichloride
Conditions | Yield |
---|---|
With phosphorus pentachloride at 180℃; for 3h; |
monosodique de l'acide chloro-4 phtalique
(R)-3-(5-chloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-pyrrolidine-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: phosphorus pentachloride / 3 h / 180 °C 2: pyridine / 2.5 h / 80 °C View Scheme |
monosodique de l'acide chloro-4 phtalique
(R)-3-(5-chloro-1,3-dihydro-isoindol-2-yl)-pyrrolidine-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: phosphorus pentachloride / 3 h / 180 °C 2: pyridine / 2.5 h / 80 °C 3: lithium aluminium tetrahydride; aluminum (III) chloride / diethyl ether / 1.5 h / 0 °C View Scheme |
monosodique de l'acide chloro-4 phtalique
3,3',4,4'-biphenyltetracarboxylic anhydride
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: sodium hydroxide; palladium on activated charcoal / water / 6 h / Reflux 1.2: 6 h / Reflux 2.1: hydrogenchloride / water / 7 h / Reflux 3.1: 24 h / 120 - 250 °C / Heating View Scheme |
monosodique de l'acide chloro-4 phtalique
Conditions | Yield |
---|---|
Stage #1: monosodique de l'acide chloro-4 phtalique With palladium on activated charcoal; sodium hydroxide In water for 6h; Reflux; Stage #2: With hydroxyammonium sulfate In water for 6h; Reflux; |
monosodique de l'acide chloro-4 phtalique
4,4'-biphthalic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: sodium hydroxide; palladium on activated charcoal / water / 6 h / Reflux 1.2: 6 h / Reflux 2.1: hydrogenchloride / water / 7 h / Reflux View Scheme |
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