Dayangchem's 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. DayangChem can provide different quantities
Cas:140-39-6
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
Shanghai 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
Cas:140-39-6
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
inquiryOur main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Cas:140-39-6
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryAcetic acid,4-methylphenyl ester P-TOLYL ACETATE Basic information Product Name: P-TOLYL ACETATE Synonyms: P-ACETOXYTOLUENE;P-CRESYL ACETATE;P-TOLYL ACETATE;4-Acetoxyt
Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
Cas:140-39-6
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:140-39-6
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:140-39-6
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:140-39-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Cas:140-39-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
Cas:140-39-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryAppearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:By Sea/Air/Courier Port:Qingdao
Cas:140-39-6
Min.Order:1 Kilogram
FOB Price: $16.0 / 20.0
Type:Lab/Research institutions
inquirysuperior quality Appearance:powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Blending spices, deployment of ylang ylang, narcissus, card yla
Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:140-39-6
Min.Order:0 Metric Ton
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Type:Lab/Research institutions
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
Cas:140-39-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:140-39-6
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryShandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W
Cas:140-39-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:140-39-6
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:140-39-6
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryWe produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
high 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
R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:140-39-6
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
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
1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou
Ansciep 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
We are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
Cas:140-39-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With pyridine at 100℃; for 15h; | 100% |
at 20℃; for 0.666667h; | 100% |
With pyridine at 25℃; for 12h; | 100% |
Conditions | Yield |
---|---|
With trifluorormethanesulfonic acid In acetonitrile at 20℃; for 1h; | 99% |
With tetrabutyl-ammonium chloride; sodium hydroxide In dichloromethane; water at 0℃; for 0.0833333h; | 95% |
With ZnAl2O4 nanoparticles at 20℃; for 0.566667h; Neat (no solvent); | 93% |
Conditions | Yield |
---|---|
With 50wtpercent Cs2.5H0.5PW12O40 supported on MCM-41 In acetonitrile at 50℃; for 0.5h; | 98% |
With phosphorus pentoxide; silica gel at 25℃; for 6h; | 84% |
With phosphate buffer; Porcine Pancreas Lipase In chloroform; Petroleum ether at 56 - 60℃; for 88h; pH=7.0; | 67.9% |
Conditions | Yield |
---|---|
With potassium hydroxide In tetrahydrofuran at 120℃; for 18h; Schlenk technique; | 98% |
With sodium carbonate In acetonitrile at 120℃; for 24h; Schlenk technique; | 98% |
With pseudomonas fuorescens lipase immobilized on multiwall carbon nano-tubes at 50℃; for 12h; Green chemistry; | 69% |
In tetrahydrofuran; cyclohexane at 40℃; Rate constant; adsorbed Chromobacterium viscosum lipase; | |
With steapsin lipase In hexane at 55℃; for 60h; Enzymatic reaction; | 81 %Chromat. |
4-Methylanisole
carbon monoxide
methyl iodide
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
With iridium(III) chloride; triphenylphosphine In acetonitrile at 180℃; under 3750.38 Torr; for 20h; Autoclave; | 95% |
Conditions | Yield |
---|---|
With palladium diacetate; bis-[(trifluoroacetoxy)iodo]benzene at 80℃; for 17h; | 93% |
Conditions | Yield |
---|---|
With Amberlite IRA-400 for 2h; Ambient temperature; | 92% |
Conditions | Yield |
---|---|
With acetic acid | A 92% B n/a |
p-cresol
carbon monoxide
methyl iodide
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
With iridium(III) chloride; triphenylphosphine In acetonitrile at 180℃; under 3750.38 Torr; for 20h; Autoclave; | 91% |
Conditions | Yield |
---|---|
With oxygen; benzaldehyde; nickel(II) iodide; Dowex 50W; iron(II) In 1,2-dichloro-ethane at 20℃; for 7h; Baeyer-Villiger oxidation; | 87% |
With sodium perborate In acetic acid; trifluoroacetic acid for 8h; Ambient temperature; | 79% |
With dihydrogen peroxide In 1,2-dichloro-ethane at 80℃; for 24h; Baeyer-Villiger Ketone Oxidation; regioselective reaction; | 59% |
Conditions | Yield |
---|---|
With lithium bromide In dichloromethane at 30 - 35℃; for 12h; Inert atmosphere; | 86% |
Conditions | Yield |
---|---|
at 80℃; for 0.333333h; neat (no solvent); | 65% |
Conditions | Yield |
---|---|
With copper(II) acetate monohydrate In acetonitrile at 80℃; for 18h; Reagent/catalyst; Temperature; Sealed tube; | 64% |
With copper diacetate In acetonitrile at 80℃; for 4h; | 53% |
4-Methylanisole
acetyl chloride
A
1-acetoxy-4-methylbenzene
B
2,2'-dimethoxy-5,5'-dimethyl-1,1'-biphenyl
Conditions | Yield |
---|---|
CoCl2 In acetonitrile at 80℃; | A 45% B 52% |
4-methyl-4-acetyl-2-cyclohexen-1-one
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In benzene for 220h; Heating; | 35% |
With benzenesulfonamide; benzeneseleninic anhydride In benzene for 48h; Heating; | |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone |
perfluoroheptanoic acid
toluene
A
2-methylphenyl acetate
B
1-acetoxy-4-methylbenzene
E
2,2,3,3,4,4,5,5,6,6,7,7,7-Tridecafluoro-heptanoic acid p-tolyl ester
Conditions | Yield |
---|---|
With lead(IV) acetate at 80℃; for 7h; Mechanism; Product distribution; other temperature; | A n/a B n/a C n/a D 5% E n/a |
Conditions | Yield |
---|---|
With boric acid; xylene Entfernen des entstehenden H2O und Erhitzen des Reaktionsprodukts mit Essigsaeure; | |
With pyridine; acetic anhydride |
Conditions | Yield |
---|---|
at 50 - 60℃; zuletzt bei 140-150grad; |
Conditions | Yield |
---|---|
With oxygen; toluene-4-sulfonic acid at 90℃; |
Conditions | Yield |
---|---|
With chloroform |
p-cresol
1-acetyl-3-benzylimidazolium bromide
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
In chloroform for 0.3h; Ambient temperature; | 99 % Spectr. |
3-nitrophenyl acetate
p-cresolate
A
1-acetoxy-4-methylbenzene
B
3-nitrophenolate anion
Conditions | Yield |
---|---|
With potassium chloride In water at 25℃; Rate constant; |
3,4-dinitro-phenyl-acetate
p-cresolate
A
1-acetoxy-4-methylbenzene
B
3,4-dinitrophenoxide ion
Conditions | Yield |
---|---|
With potassium chloride In water at 25℃; Rate constant; |
acetic anhydride
toluene
A
2-methylphenyl acetate
B
3-acetoxytoluene
C
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
With hexaaquairon(II) perchlorate; dihydrogen peroxide; acetonitrile at 30℃; for 0.05h; Product distribution; Mechanism; se. aromatic and aliphatic hydrocarbons; further reagents: iron(II)-solvates; var. ratio of reagents; |
4-acetyl-4-methyl-6-phenylselenocyclohex-2-enone
A
p-cresol
B
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
With ozone In dichloromethane at -78 - 20℃; for 1.5h; Title compound not separated from byproducts; | |
With ozone In diethyl ether Product distribution; 1) -78 deg C, 2) to r.t.; |
acetic acid
toluene
A
2-methylphenyl acetate
B
3-acetoxytoluene
C
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
With palladium diacetate; sodium dichromate; methanesulfonic acid; benzonitrile at 90℃; for 16h; Product distribution; Mechanism; var. conc. of oxidazing agent, other aromatic compounds; |
p-cresol
4-nitrophenol acetate
A
4-nitro-phenol
B
1-acetoxy-4-methylbenzene
Conditions | Yield |
---|---|
In water; acetonitrile at 25℃; Rate constant; Mechanism; pH 10.00; |
Conditions | Yield |
---|---|
silica gel; toluene-4-sulfonic acid In water; toluene at 80℃; for 8h; | 100% |
With ammonium acetate In methanol at 20℃; for 4.5h; | 97% |
With mesoporous silica-supported (Salen) Co(II) catalyst In methanol at 20℃; for 1h; chemoselective reaction; | 95% |
1-acetoxy-4-methylbenzene
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
Conditions | Yield |
---|---|
With manganese(II) triflate bis-acetonitrile solvate; potassium tert-butylate In benzene-d6 at 20℃; for 3h; Inert atmosphere; Glovebox; | 99% |
Conditions | Yield |
---|---|
With aluminium trichloride a) 130 deg C, 1 h, b) 25 deg C (ice cooling), 1 h; | 98% |
With phosphorus pentoxide; silica gel for 0.0833333h; Fries rearrangement; microwave irradiation; | 98% |
for 0.116667h; Rearrangement; microwave irradiation; | 97% |
1-acetoxy-4-methylbenzene
diphenyl acetylene
6-methyl-3,4-diphenyl-2H-chromen-2-one
Conditions | Yield |
---|---|
With copper acetylacetonate; tris(triphenylphosphine)ruthenium(II) chloride; di-n-butyliodotin hydride; 3-ethyl-1-methyl-1H-imidazol-3-ium 2,2,2-trifluoroacetate In 1,4-dioxane; dimethyl sulfoxide at 20 - 70℃; for 8h; Reagent/catalyst; Inert atmosphere; | 97.6% |
Conditions | Yield |
---|---|
With sodium methylate In N,N-dimethyl-formamide for 0.5h; Ambient temperature; | 95% |
Conditions | Yield |
---|---|
With copper(l) iodide; sulfur; sodium t-butanolate at 60 - 80℃; for 22h; | 92% |
With sulfur; nickel(II) ferrite; sodium t-butanolate at 90℃; for 24h; Green chemistry; | 90 %Chromat. |
p-Aminophenethylamine
1-acetoxy-4-methylbenzene
4-(2-(((methyl)carbonyl)amino)ethyl)aniline
Conditions | Yield |
---|---|
at 20℃; for 30h; | 89.7% |
at 20℃; for 30h; | 89.7% |
1-acetoxy-4-methylbenzene
4-acetoxybenzyl bromide
Conditions | Yield |
---|---|
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane at 50℃; for 3h; | 89.2% |
With N-Bromosuccinimide; dibenzoyl peroxide In chloroform for 4h; Reflux; | 79% |
With N-Bromosuccinimide; dibenzoyl peroxide In chloroform at 61℃; for 4h; | 66% |
1-acetoxy-4-methylbenzene
4-methylphenylboronic acid
di-(p-tolyl)sulfane
Conditions | Yield |
---|---|
With copper(l) iodide; sulfur; sodium t-butanolate at 60 - 80℃; for 25h; | 89% |
With sulfur; nickel(II) ferrite; sodium t-butanolate at 90℃; for 26h; Green chemistry; | 89 %Chromat. |
Conditions | Yield |
---|---|
With potassium fluoride; copper diacetate; potassium carbonate; sulfur at 80℃; for 12h; | 89% |
With sulfur; potassium fluoride; nickel(II) ferrite; potassium carbonate at 85℃; for 14h; Green chemistry; | 87 %Chromat. |
Conditions | Yield |
---|---|
With copper(l) iodide; sulfur; sodium t-butanolate In N,N-dimethyl-formamide at 120℃; for 15h; Inert atmosphere; | 88% |
With sulfur; nickel(II) ferrite; sodium t-butanolate In N,N-dimethyl-formamide at 120℃; for 17h; Inert atmosphere; Green chemistry; | 88 %Chromat. |
Conditions | Yield |
---|---|
With zinc(II) oxide In N,N-dimethyl-formamide for 0.133333h; microwave irradiation; | 83% |
With oxygen; manganese (II) acetate tetrahydrate; cobalt(II) diacetate tetrahydrate; acetic acid at 100℃; for 15h; | 83% |
With 2,2'-azobis(isobutyronitrile); oxygen; 1N,3N,5N-trihydroxy-1,3,5-triazin-2,4,6[1H,3H,5H]-trione; cobalt(II) acetate; manganese(II) acetate In acetic acid at 100℃; under 760 Torr; for 6h; | 74% |
1-acetoxy-4-methylbenzene
azobisisobutyronitrile
1N,3N,5N-trihydroxy-1,3,5-triazin-2,4,6[1H,3H,5H]-trione
4-acetyloxy-benzoic acid
Conditions | Yield |
---|---|
With acetic acid | 82% |
1-acetoxy-4-methylbenzene
4-methoxybenzoic acid
4-methylphenyl 4-methoxybenzoate
Conditions | Yield |
---|---|
With phosphotungstic acid In 5,5-dimethyl-1,3-cyclohexadiene at 160 - 170℃; Reagent/catalyst; | 82% |
1-acetoxy-4-methylbenzene
A
4-formylphenyl acetate
B
Acetic acid 4-nitrooxymethyl-phenyl ester
Conditions | Yield |
---|---|
With ammonium cerium(IV) nitrate In acetonitrile at 40℃; for 2.5h; Irradiation; | A n/a B 80% |
With ammonium cerium(IV) nitrate In acetonitrile at 40℃; for 2.5h; Mechanism; Irradiation; | A n/a B 80% |
Conditions | Yield |
---|---|
With phosphotungstic acid In 5,5-dimethyl-1,3-cyclohexadiene at 160 - 170℃; Reagent/catalyst; | 79% |
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide 1.) 0 deg C, 1 h, 2.) 25 deg C; | 78% |
4-Bromobenzoic acid
1-acetoxy-4-methylbenzene
4-methylphenyl 4-bromobenzoate
Conditions | Yield |
---|---|
With phosphotungstic acid In 5,5-dimethyl-1,3-cyclohexadiene at 160 - 170℃; Reagent/catalyst; | 78% |