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inquirysuperior quality moderate price & quick delivery 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:Used to make other chemica
J&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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inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
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Type:Trading Company
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as:
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
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Naphthalene,1,4-dimethyl- cas 571-58-4Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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hight 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
571-58-4 Application:intermediate
Cas:571-58-4
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Type:Lab/Research institutions
inquiryChangzhou 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
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; sodium iodide In acetonitrile at 70℃; for 24h; Reagent/catalyst; Solvent; Inert atmosphere; | 97% |
(4-fluoronaphthalen-1-yl)(methyl)sulfane
methylmagnesium bromide
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With [1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene](triphenylphosphine)nickel(II) dichloride In diethyl ether; toluene at 20℃; for 8h; Schlenk technique; Inert atmosphere; Sealed tube; | 95% |
1,4-bis(methylthio)naphthalene
methylmagnesium bromide
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With [1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene](triphenylphosphine)nickel(II) dichloride In diethyl ether; toluene at 20℃; for 8h; Schlenk technique; Inert atmosphere; Sealed tube; | 95% |
Conditions | Yield |
---|---|
With chloro-trimethyl-silane; sodium iodide In acetonitrile at 0 - 20℃; for 24h; | 92% |
With sodium tetrahydroborate; trifluoroacetic acid In tetrahydrofuran at 20 - 25℃; overnight; | 90% |
With n-butyllithium; tungsten(VI) chloride In tetrahydrofuran; hexane 1.) -78 deg C, 1 h, 2.) from -78 deg C to room temp., 1 h, 3.) 5 h; | 88% |
With isopropylmagnesium bromide In tetrahydrofuran for 2h; Heating; | 73% |
1,4-dimethylnaphtalene-1,4-endoperoxide
acetaldehyde
A
1,4-dimethylnaphthalene
(4aS,10aR)-2,4a,9-Trimethyl-4a,10a-dihydro-1,3,4-trioxa-phenanthrene
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at -78℃; for 1h; | A 5% B 87% |
methylmagnesium bromide
methyl(4-methylnaphthalen-1-yl)sulfane
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With [1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene](triphenylphosphine)nickel(II) dichloride In diethyl ether; toluene at 20℃; for 8h; Schlenk technique; Inert atmosphere; Sealed tube; | 87% |
1,2-bis-(4-methyl-[1]naphthyl)-ethane
A
1,4-dimethylnaphthalene
B
5,8-dimethyl-1,4-dihydronaphthalene
Conditions | Yield |
---|---|
With potassium at 5℃; for 6h; | A 85% B 2% |
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With chlorosulfonic acid In chloroform at 0℃; | 85% |
1,4-dimethylnaphtalene-1,4-endoperoxide
acetone
A
1,4-dimethylnaphthalene
3,3,6,10b-tetramethyl-4a,10b-dihydronaphtho<2,1-e><1,2,4>trioxane
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at -78℃; for 1h; | A 5% B 83% |
(4-Methyl-naphthalen-1-ylmethyl)-triphenyl-phosphonium; chloride
A
1,4-dimethylnaphthalene
B
Triphenylphosphine oxide
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol; water Heating; | A 70% B n/a |
1,4-dimethylnaphtalene-1,4-endoperoxide
cyclopentanone
A
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at -78℃; for 1h; | A 5% B 70% |
Conditions | Yield |
---|---|
With nickel(II) acetylacetonate dihydrate; 1,3-bis-(diphenylphosphino)propane In 1,4-dioxane; hexane at 170℃; for 16h; Inert atmosphere; Sealed tube; chemoselective reaction; | 67% |
r,t-1,4-dimethyl-t,c-2,3-bis(mesyloxy)-1,2,3,4-tetrahydronaphthalene
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran for 16h; Heating; | 62% |
(4-methyl-7-oxa-1-benzonorbornenyl)methyl benzoate
A
1,4-dimethylnaphthalene
B
1-Methylnaphthalene
Conditions | Yield |
---|---|
at 650℃; under 0.01 Torr; | A 12% B 2% C 62% |
5,8-dimethyl-1,2-tetrahydronaphthalene
manganese triacetate
A
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With acetic acid; potassium bromide at 70℃; for 6h; | A 60% B 40% |
Conditions | Yield |
---|---|
With nickel(II) iodide; 4,4'-dimethyl-2,2'-bipyridines; tetra-(n-butyl)ammonium iodide; magnesium chloride; zinc In N,N-dimethyl acetamide at 20℃; for 12h; Inert atmosphere; Schlenk technique; Sealed tube; | 60% |
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With methyllithium; hexamethyldistannane In 1,4-dioxane at 20℃; for 48h; Inert atmosphere; | 55% |
Conditions | Yield |
---|---|
With bis(1,5-cyclooctadiene)nickel (0); cesium fluoride; 1,2-bis-(dicyclohexylphosphino)ethane In toluene at 130℃; for 24h; | 55% |
1,4-dimethylnaphtalene-1,4-endoperoxide
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
In dichloromethane at 40℃; | 50% |
In 1,4-dioxane at 12℃; Thermodynamic data; Rate constant; ΔE<*>, log A, ΔH<*>, ΔS<*>; magnetic field effect; other temperature; | |
In various solvent(s) at 50℃; yields of singlet molecular oxygen; other peroxides; var solvents and temp.; |
ethanol
2-ethoxy-1,4-dimethyl-1,2-dihydro-1-naphthyl hydroperoxide
A
1,4-dimethylnaphthalene
B
1-ethoxymethyl-4-methylnaphthalene
Conditions | Yield |
---|---|
With amberlyst-15 at 25℃; for 16h; | A 10% B 48% C 14% |
2-ethoxy-1,4-dimethyl-1,2-dihydro-1-naphthyl hydroperoxide
A
1,4-dimethylnaphthalene
B
1-ethoxymethyl-4-methylnaphthalene
Conditions | Yield |
---|---|
With amberlyst-15; ethanol at 25℃; for 16h; | A 10% B 48% C 14% |
dimethylsulfone
cis/trans-4-methyl-1,2,3,4-tetrahydro-1-naphthol
A
1,4-dimethylnaphthalene
B
hydrogen
Conditions | Yield |
---|---|
With 1,10-Phenanthroline; potassium tert-butylate; iron(II) chloride In toluene at 120℃; for 24h; Julia Olefin Synthesis; Inert atmosphere; Schlenk technique; | A 48% B n/a |
Conditions | Yield |
---|---|
With 2.9-dimethyl-1,10-phenanthroline; palladium(II) trifluoroacetate; potassium tert-butylate In toluene at 120℃; for 20h; Inert atmosphere; | 45% |
ethanol
1,4-dimethyl-1,4-dihydro-1,4-epidioxidonaphthalene
A
1,4-dimethylnaphthalene
B
1-ethoxymethyl-4-methylnaphthalene
C
2-ethoxy-1,4-dimethyl-1,2-dihydro-1-naphthyl hydroperoxide
Conditions | Yield |
---|---|
With amberlyst-15 at 25℃; for 1h; | A 14% B 40% C 12% D 4% |
1,4-dimethyl-1,4-dihydro-1,4-epidioxidonaphthalene
A
1,4-dimethylnaphthalene
B
1-ethoxymethyl-4-methylnaphthalene
C
2-ethoxy-1,4-dimethyl-1,2-dihydro-1-naphthyl hydroperoxide
Conditions | Yield |
---|---|
With amberlyst-15; ethanol at 25℃; for 1h; | A 14% B 40% C 12% D 4% |
1,2-bis-(4-methyl-[1]naphthyl)-ethane
A
1,4-dimethylnaphthalene
B
1,2,3,4-tetrahydro-5,8-dimethylnaphthalene
C
5,8-dimethyl-1,4-dihydronaphthalene
Conditions | Yield |
---|---|
With sodium In N,N,N,N,N,N-hexamethylphosphoric triamide at 20℃; for 1h; | A 38% B 14% C 37% |
1,4-dimethyl-1,4-dihydro-1,4-epidioxidonaphthalene
A
1,4-dimethyl-2-naphthol
B
4-methyl-1-naphthalenemethanol
C
1,4-dimethylnaphthalene
D
bis<(4-methyl-1-naphthyl)methyl> ether
Conditions | Yield |
---|---|
With sulfuric acid In tetrahydrofuran at 25℃; for 3h; Further byproducts given; | A 21% B 38% C 4% D 2% |
1,4-dimethyl-1,4-dihydro-1,4-epidioxidonaphthalene
A
1,4-dimethyl-2-naphthol
B
4-methyl-1-naphthalenemethanol
C
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With sulfuric acid In tetrahydrofuran at 25℃; for 3h; Further byproducts given; | A 21% B 38% C 4% D 2% |
sodium cyanide
B
1,4-dimethylnaphthalene
C
5,8-dimethyl-1,2-tetrahydronaphthalene
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide at 120℃; for 72h; | A 36% B n/a C n/a |
(benzene)tricarbonylchromium
sodium 1,4-dimethylnaphthalenide
A
(Cr(η6-1,4-dimethylnaphthalene)(CO)3)
B
{Cr(η6-1,4-dimethylnaphthalene)(CO)3}
C
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With oxygen In tetrahydrofuran reduction of benzene complex with naphthalenide at -78°C, warming to room temp., placing under O2 atmosphere; monitored by IR, evapn., extn. (Et2O), evapn., sublimation of naphthalene; | A 0% B 35% C n/a |
With oxygen In tetrahydrofuran reduction of benzene complex with naphthalenide at -78°C, warming to room temp., placed under O2; monitored by IR, evapn., extn. (Et2O), evapn., sublimation of naphthalene; | A 0% B 33% C n/a |
1,4-dimethylnaphthalene
1,4-dimethylnaphtalene-1,4-endoperoxide
Conditions | Yield |
---|---|
With oxygen; thiamine diphosphate In dichloromethane for 2h; Irradiation; | 100% |
With oxygen; methylene blue In dichloromethane for 5h; Oxidation; Irradiation; | 65% |
In dichloromethane at -5℃; Irradiation; | 64% |
Conditions | Yield |
---|---|
With cyclohexane; hydrogen fluoride; boron trifluoride at -10℃; for 1h; Product distribution / selectivity; | 99% |
With hexane; methyl-cyclopentane; hydrogen fluoride; boron trifluoride at -10℃; for 1h; Product distribution / selectivity; | 99.4% |
With methyl-cyclopentane; hydrogen fluoride; boron trifluoride at -10℃; for 1h; Product distribution / selectivity; | 99.8% |
1,4-dimethylnaphthalene
2-Bromo-1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With bromine In chloroform at 0 - 20℃; for 1.16667h; Inert atmosphere; Darkness; | 99% |
With bromine; iron In dichloromethane at 0℃; for 2h; | 96.5% |
With bromine at 10 - 20℃; for 2h; Inert atmosphere; Darkness; | 93% |
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
With (18)O2; methylene blue In dichloromethane for 8h; Irradiation; | 98% |
Conditions | Yield |
---|---|
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 4,4'-di-tert-butyl-2,2'-bipyridine In tetrahydrofuran for 18h; Inert atmosphere; Reflux; | 98% |
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 4,4′-di-(tert-butyl)-2,2′-bipyridyl In cyclohexane at 60℃; for 20h; Inert atmosphere; | 82% |
1,4-dimethylnaphthalene
A
4-methyl-1-naphthaldehyde
B
acetic acid-(4-methyl-[1]naphthylmethyl ester)
Conditions | Yield |
---|---|
With ammonium cerium(IV) nitrate In water; acetic acid at 85℃; for 2h; | A 91% B 6% |
1,4-dimethylnaphthalene
acetic acid
A
4-methyl-1-naphthaldehyde
B
acetic acid-(4-methyl-[1]naphthylmethyl ester)
Conditions | Yield |
---|---|
With ammonium cerium(IV) nitrate In water at 85℃; for 2h; | A 91% B 6% |
1,4-dimethylnaphthalene
1,4-bis(bromomethyl)naphthalene
Conditions | Yield |
---|---|
With N-Bromosuccinimide; dibenzoyl peroxide In dichloromethane at 55℃; for 6h; Inert atmosphere; | 90% |
With N-Bromosuccinimide; dibenzoyl peroxide In dichloromethane for 9h; Inert atmosphere; Reflux; | 80% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane for 1h; Reflux; | 75% |
silver tetrafluoroborate
bromopentacarbonylmanganese(I)
1,4-dimethylnaphthalene
Conditions | Yield |
---|---|
In dichloromethane N2-atmosphere; refluxing (1 h), arene soln. addn., refluxing (overnight); filtering (room temp.), pptn. on concg. (vac.) and Et2O addn., washing (ether), drying (vac.); | 89% |
1,4-dimethylnaphthalene
O-(p-toluenesulfonyl)-N-methylhydroxylamine
Conditions | Yield |
---|---|
With bis{rhodium[3,3'-(1,3-phenylene)bis(2,2-dimethylpropanoic acid)]}; trifluoroacetic acid In dichloromethane; 2,2,2-trifluoroethanol at 0℃; for 0.5h; regioselective reaction; | 89% |
With Rh2(esp)2 In dichloromethane; 2,2,2-trifluoroethanol at 0℃; for 0.5h; Inert atmosphere; | 89% |
With air at 20℃; for 36h; chemoselective reaction; | 81% |
1,4-dimethylnaphthalene
A
1,4-dimethyl-2-nitronaphthalene
B
4-methyl-1-(nitromethyl)naphthalene
Conditions | Yield |
---|---|
With N-nitro-4-methoxypyridinium tetrafluoroborate In [D3]acetonitrile at 23℃; for 21h; Irradiation; | A 2% B 87% C 4% |
1,4-dimethylnaphthalene
acetyl chloride
1-(1,4-dimethylnaphthalen-2-yl)ethanone
Conditions | Yield |
---|---|
Stage #1: acetyl chloride With aluminum (III) chloride In dichloromethane at 0℃; for 0.5h; Inert atmosphere; Stage #2: 1,4-dimethylnaphthalene In dichloromethane at 20℃; for 3.5h; Inert atmosphere; | 87% |
With aluminium trichloride |
1,4-dimethylnaphthalene
1-nitropyridinium tetrafluoroborate
A
4-methyl-1-(nitromethyl)naphthalene
Conditions | Yield |
---|---|
In [D3]acetonitrile at -35℃; for 20h; Irradiation; | A 21% B 74% |
In acetonitrile at 0℃; for 3h; Mechanism; Irradiation; | |
In acetonitrile at 0℃; for 3h; Irradiation; Yield given. Yields of byproduct given; |
1,4-dimethylnaphthalene
1,4-dimethyl-2-nitronaphthalene
Conditions | Yield |
---|---|
With oxygen; nitrosonium tetrafluoroborate In acetonitrile at 3℃; for 3.5h; | 68% |
With nitronium tetrafluoborate In dichloromethane at 0℃; for 1h; | 50% |
With nitric acid; acetic anhydride | |
With tetranitromethane In various solvent(s) at 20℃; Irradiation; Yield given; | |
Multi-step reaction with 2 steps 1: tetrabutylammonium hexafluorophosphate / CH2Cl2 / -70 °C / anodic oxidation 2: nitrogen dioxide / CH2Cl2 / -70 deg C -> 0 deg C View Scheme |
1,4-dimethylnaphthalene
1-[4,4-difluoro-3-(2-phenylethyl)but-3-en-1-yl]-4-methylnaphthalene
Conditions | Yield |
---|---|
Stage #1: 1,4-dimethylnaphthalene With n-butyllithium; potassium tert-butylate In hexane at 20℃; for 0.5h; Stage #2: (3-(trifluoromethyl)-but-3-en-1-yl)benzene With lithium bromide In tetrahydrofuran; hexane at -78 - 20℃; | 66% |
1,4-dimethylnaphthalene
(E)-N-methoxy-N-methyl-3-(4-nitrophenyl)acrylamide
Conditions | Yield |
---|---|
With di-tert-butyl peroxide; copper diacetate; aspirin at 120℃; under 760.051 Torr; for 24h; Inert atmosphere; diastereoselective reaction; | 66% |
1,4-dimethylnaphthalene
A
1,4-dimethylnaphtalene-1,4-endoperoxide
B
4-methyl-1-naphthaldehyde
Conditions | Yield |
---|---|
With 9,10-Dicyanoanthracene; oxygen In acetonitrile for 0.25h; Ambient temperature; Irradiation; | A 65% B 25% |
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