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inquiryDonglian as a factory and supplier of aroma chemicals in China, We can provide different quantities of custom synthesis chemicals in food flavor scale more than fourteen years.in addition, our company has researched and developed four series
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Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
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inquiryhigh quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
The 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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inquiryAs a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis
Cas:123-32-0
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inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
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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
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inquiryAbout Our Group Since 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & c
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Cas:123-32-0
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Type:Trading Company
inquiry2,5-Dimethyl pyrazine CAS:123-32-0. Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic inte
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Type:Trading Company
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
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Min.Order:10 Gram
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Type:Trading Company
inquiry2.5-Dimethyl pyrazine CAS:123-32-0 Specification Min.Order:1 Kilogram Payment Terms: L/C,D/P,T/T Appearance: detailed see specifications Application: It is an important raw material and in... Delivery Time: prompt Pack Age: according to the
Cas:123-32-0
Min.Order:1 Kilogram
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Type:Other
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
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Lorcaserin(856681-05-5)is an orally administered agent and a selective 5-HT2C receptor agonist for the treatment of obesity. It had been approved for marketing in US by FDA on 27 June in 2012. In clinical studies, lorcaserin h
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Min.Order:10 Gram
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Type:Lab/Research institutions
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Min.Order:0 Metric Ton
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Type:Lab/Research institutions
inquiry3-amino-2-propanol
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
87% | |
85% | |
With copper oxide-chromium oxide catalyst at 275℃; |
2,5-dimethylpyrimidine
A
2,5-dimethyl-pyrazine
B
4,6-dimethylpyrimidine
Conditions | Yield |
---|---|
under 1 - 1.5 Torr; for 0.0833333h; Irradiation; | A 62% B 31% |
2,5-dimethyl-3-chloropyrazine
diethylzinc
A
2,5-dimethyl-pyrazine
B
2-ethyl-3,6-dimethylpyrazine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In N,N-dimethyl-formamide Heating; | A 49% B 25% |
2,5-dimethyl-3-chloropyrazine
A
2,5-dimethyl-pyrazine
B
2-ethyl-3,6-dimethylpyrazine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); diethylzinc; potassium carbonate In N,N-dimethyl-formamide Heating; | A 49% B 25% |
1-ethoxycarbonylamino-2,5-dimethyl-pyrazinium betaine
A
2,5-dimethyl-pyrazine
B
ethyl 3-methylpyrazole-N-carboxylate
Conditions | Yield |
---|---|
In benzene for 3h; Irradiation; | A 30% B 45% |
Conditions | Yield |
---|---|
With C39H31BMnNO2P2; potassium hydride In toluene at 150℃; for 48h; | 45% |
1-azido-3-methylpentan-2-one
1-azidopropan-2-one
A
2,5-dimethyl-pyrazine
B
2,5-bis(1-methylpropyl)pyrazine
C
2-methyl-5-(1-methylpropyl)pyrazine
Conditions | Yield |
---|---|
With triphenylphosphine In benzene at 20℃; for 24h; | A 36% B 20% C 34% |
4,6-dimethylpyrimidine
A
2,5-dimethylpyrimidine
B
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
under 1 - 1.5 Torr; for 0.0833333h; Irradiation; | A 31% B 31% |
Conditions | Yield |
---|---|
With air; sodium acetate In methanol at 60℃; | 30% |
1,4-dioxane
3-amino-2-propanol
A
2,5-dimethyl-pyrazine
B
2,5-dimethylpiperazine
Conditions | Yield |
---|---|
With tributylphosphine; ruthenium trichloride | A n/a B 13.3% |
With tributylphosphine; ruthenium trichloride | A n/a B 13.3% |
3,6-dimethyl-pyrazine-2-carboxylic acid
acetic acid
A
2,5-dimethyl-pyrazine
B
methylammonium carbonate
Conditions | Yield |
---|---|
at 180 - 200℃; |
AlaOEt
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
With hydrogenchloride; sodium amalgam Oxydation des entstandenen α-Amino-propionaldehyds mit Quecksilberchlorid in alkal. Loesung; |
Conditions | Yield |
---|---|
bei der Destillation mit Ammoniumsalzen; | |
bei der Destillation mit Ammoniumsalzen; |
Conditions | Yield |
---|---|
With hydrogenchloride; tin Behandlung der Reaktionsprodukte mit Alkalien; | |
With acetic acid; zinc Behandlung der Reaktionsprodukte mit Alkalien; | |
With sulfuric acid Electrolysis.Behandeln der Reaktionsprodukte mit Alkalien; |
Conditions | Yield |
---|---|
With aluminum oxide; copper oxide-chromium oxide silicon dioxide aluminium oxide catalyst; water; silica gel at 350 - 375℃; | |
With Cp*Ir(6,6'-dionato-2,2'-bipyridine)(H2O) In para-xylene for 20h; Catalytic behavior; Reagent/catalyst; Solvent; Reflux; Inert atmosphere; Schlenk technique; | 100 %Chromat. |
With bis(1,5-cyclooctadiene)diiridium(I) dichloride In para-xylene at 160℃; for 48h; Inert atmosphere; Sealed tube; |
Conditions | Yield |
---|---|
With hydrogenchloride folgend Oxydation mit Quecksilber(II)-chlorid und Alkalilauge; |
2,4-dimethyl-2-imidazoline
chloroform
A
2,4-dimethylpyrimidine
B
2,5-dimethyl-pyrazine
C
5-chloro-2-methylpyrimidine
D
4-chloro-2,6-dimethylpyrimidine
Conditions | Yield |
---|---|
at 550℃; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts; |
2,4-dimethyl-2-imidazoline
chloroform
A
2,4-dimethylpyrimidine
B
2,5-dimethyl-pyrazine
C
2,5-dimethyl-3-chloropyrazine
D
2-chloro-3,5-dimethylpyrazine
Conditions | Yield |
---|---|
at 550℃; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts; |
2,4-dimethyl-2-imidazoline
chloroform
A
2,5-dimethyl-pyrazine
B
2,5-dimethyl-3-chloropyrazine
C
2-chloro-3,5-dimethylpyrazine
D
4-chloro-2,5-dimethylpyrimidine
Conditions | Yield |
---|---|
at 550℃; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts; |
2,4-dimethyl-2-imidazoline
chloroform
A
2,5-dimethyl-pyrazine
B
4-chloro-2-methylpyrimidine
C
2-methylimidazole
D
5-Chloro-2,4-dimethylpyrimidine
Conditions | Yield |
---|---|
at 550℃; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts; |
2,4-dimethyl-2-imidazoline
chloroform
A
2,4-dimethylpyrimidine
B
2,5-dimethyl-pyrazine
C
4-chloro-2,6-dimethylpyrimidine
D
2,6-dimethylpyrazine
Conditions | Yield |
---|---|
at 550℃; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts; |
2-<2-Hydroxy-2-(p-methoxyphenyl)ethyl>-5-methylpyrazine
A
2,5-dimethyl-pyrazine
B
4-methoxy-benzaldehyde
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 170℃; Rate constant; |
D-(+)-Glucose
A
1,4-pyrazine
B
2-Methylpyrazine
C
2,5-dimethyl-pyrazine
D
2,3-dimethylpyrazine
E
2,6-dimethylpyrazine
F
2,3,5-trimethylpyrazine
Conditions | Yield |
---|---|
With ammonium hydroxide In glycerol for 9h; Product distribution; Heating; also with amino acids; |
N-(2-hydroxypropyl)ethylenediamine
A
1,4-pyrazine
B
2-Methylpyrazine
C
2,5-dimethyl-pyrazine
D
2-ethylpyrazine
E
2-methylimidazole
F
2-methyl-3-ethylpyrazine
Conditions | Yield |
---|---|
With hydrogen; 5% platinum on alumina at 350℃; Product distribution; other bifunctional Pt/Al2O3 modified catalysts; |
3-amino-2-propanol
A
1,4-pyrazine
B
2-Methylpyrazine
C
2,5-dimethyl-pyrazine
D
2-ethyl-3,6-dimethylpyrazine
E
2,3,5-trimethylpyrazine
Conditions | Yield |
---|---|
With copper chromite at 180℃; for 0.333333h; Product distribution; var. temp.; other aminoalcohols; |
DL-methionine
A
1,4-pyrazine
B
2-Methylpyrazine
C
2,5-dimethyl-pyrazine
D
methyl 3-(methylthio)propionate
E
2,3,5-trimethylpyrazine
Conditions | Yield |
---|---|
With alpha-D-glucopyranose In water at 180℃; for 1h; Product distribution; also with methionine sulfoxide and without glucose; |
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
With acetic acid at 180 - 200℃; |
hydrogenchloride
2,2-diethyl-4-methyl-2,5-dihydro-1H-imidazole
A
2,5-dimethyl-pyrazine
B
pentan-3-one
3-amino-2-propanol
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
at 200 - 275℃; auch mit anderen Kupfer-Katalysatoren; | |
at 200 - 275℃; auch mit anderen Kupfer-Katalysatoren; |
2,5-dimethyl-pyrazine
2,2-difluoro-2-(2-methoxyphenyl)acetic acid
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate In dichloromethane; water at 50℃; for 24h; Minisci Aromatic Substitution; Inert atmosphere; Sealed tube; regioselective reaction; | 99% |
2,5-dimethyl-pyrazine
mesitylenesulfonylhydroxylamine
Conditions | Yield |
---|---|
In dichloromethane at 0℃; for 1h; | 97% |
In dichloromethane for 0.333333h; Ambient temperature; | 89% |
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate; silver orthophosphate In dichloromethane; water at 40℃; for 24h; | 97% |
2,5-dimethyl-pyrazine
trans-{PtCl2(triethylphosphine)}2(2,5-dimethylpyrazine)
Conditions | Yield |
---|---|
In chloroform-d1 ligand and Pt complex (1:2 mol) in CDCl3 (or CD2Cl2) were stirred for 5 min; floating layer of hexane over soln.; elem. anal.; | 95% |
2,5-dimethyl-pyrazine
bis(cyclopentadienyl)dimethylzirconium(IV)
diphenyl acetylene
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine; bis(cyclopentadienyl)dimethylzirconium(IV); C27H9BF17(1-)*C19H15(1-) In chlorobenzene at 20℃; for 1h; Inert atmosphere; Stage #2: diphenyl acetylene In chlorobenzene at 80℃; for 12h; Inert atmosphere; | 95% |
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate; silver orthophosphate In dichloromethane; water at 40℃; for 24h; | 95% |
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate; silver orthophosphate In dichloromethane; water at 40℃; for 24h; | 94% |
2,5-dimethyl-pyrazine
4-methoxy-benzaldehyde
2,5-bis[2-(4-methoxyphenyl)ethenyl]pyrazine
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 4h; | 93% |
With sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate for 3h; Heating; | 20% |
With zinc(II) chloride at 160℃; im Rohr; |
2,5-dimethyl-pyrazine
{Pt2Cl2(μ-Cl)2(PMePh2)2}
trans-{PtCl2(diphenylmethylphosphine)}2(2,5-dimethylpyrazine)
Conditions | Yield |
---|---|
In chloroform-d1 ligand and Pt complex (1:2 mol) in CDCl3 (or CD2Cl2) were stirred for 5 min; floating layer of hexane over soln.; elem. anal.; | 93% |
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
With potassium permanganate; potassium hydroxide In water at 60℃; for 7h; Reagent/catalyst; | 92% |
With selenium(IV) oxide In pyridine; water at 100 - 110℃; for 12h; Oxidation; | 88% |
With pyridine; selenium(IV) oxide In water for 48h; Reflux; | 85% |
Conditions | Yield |
---|---|
In acetonitrile ligand added to soln. of Cu salt, stirred for 5 h; filtered, washed with MeCN and Et2O, dried in vac.; elem. anal.; | 92% |
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate In dichloromethane; water at 50℃; for 24h; Catalytic behavior; Mechanism; Reagent/catalyst; Temperature; Solvent; Minisci Aromatic Substitution; Inert atmosphere; Sealed tube; regioselective reaction; | 92% |
2,5-dimethyl-pyrazine
benzoic acid ethyl ester
triphenylborane
C25H21BN2O
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine; benzoic acid ethyl ester With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 24h; Reflux; Stage #2: triphenylborane In tetrahydrofuran at 20℃; for 24h; Inert atmosphere; | 91% |
Conditions | Yield |
---|---|
With ferrous(II) sulfate heptahydrate; sulfuric acid; dihydrogen peroxide In water at 50 - 60℃; for 6h; | 90.88% |
With ferrous(II) sulfate heptahydrate; sulfuric acid; dihydrogen peroxide In water at 0℃; Minisci Aromatic Substitution; Green chemistry; | 45% |
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In ethyl acetate at 20℃; for 24h; Inert atmosphere; | 90% |
With Oxone In dichloromethane at 25℃; for 24h; | 87.6% |
With 3-chloro-benzenecarboperoxoic acid In ethyl acetate at 0 - 20℃; for 16h; Inert atmosphere; | 86% |
Conditions | Yield |
---|---|
With potassium permanganate; potassium hydroxide In water at 60℃; for 7h; Reagent/catalyst; | 92% |
With selenium(IV) oxide In pyridine; water at 100 - 110℃; for 12h; Oxidation; | 88% |
With pyridine; selenium(IV) oxide In water for 48h; Reflux; | 85% |
2,5-dimethyl-pyrazine
copper(II) formate tetrahydrate
[Cu(II)2(formato)4(2,5-dimethylpyrazine)]n
Conditions | Yield |
---|---|
In acetonitrile ligand added to soln. of Cu salt, stirred for 5 h; filtered, washed with MeCN and Et2O, dried in vac.; elem. anal.; | 92% |
2,5-dimethyl-pyrazine
2,2-difluoro-2-(4-methoxyphenyl)acetic acid
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate In dichloromethane; water at 50℃; for 24h; Catalytic behavior; Mechanism; Reagent/catalyst; Temperature; Solvent; Minisci Aromatic Substitution; Inert atmosphere; Sealed tube; regioselective reaction; | 92% |
Conditions | Yield |
---|---|
at 30℃; for 16h; Pseudomonas putida ATCC 33015; | 90% |
With potassium permanganate In water at 76 - 82℃; for 5.7h; Temperature; Industrial scale; | 81.6% |
With sodium tungstate; oxygen; cobalt(II) nitrate; manganese(ll) chloride In water | 75.6% |
2,5-dimethyl-pyrazine
trans-{PtCl2(dimethylphenylphosphine)}2(2,5-dimethylpyrazine)
Conditions | Yield |
---|---|
In chloroform-d1 ligand and Pt complex (1:2 mol) in CDCl3 (or CD2Cl2) were stirred for 5 min; floating layer of hexane over soln.; elem. anal.; | 90% |
2,5-dimethyl-pyrazine
1,4-benzenedicarboxylic acid dimethyl ester
C15H13BF2N2O3
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine; 1,4-benzenedicarboxylic acid dimethyl ester With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 24h; Reflux; Stage #2: With boron trifluoride diethyl etherate; triethylamine In dichloromethane at 20℃; for 24h; | 90% |
2,5-dimethyl-pyrazine
N-methylpyrrole aldehyde
(E,E)-2,5-bis[2-(1-methyl-1H-pyrrole-2-yl)-vinyl]-pyrazine
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 0.25h; Stage #2: N-methylpyrrole aldehyde In N,N-dimethyl-formamide at 80℃; for 4h; | 89% |
With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 4h; | 64% |
With potassium tert-butylate In N,N-dimethyl-formamide at 0 - 20℃; | 42% |
2,5-dimethyl-pyrazine
bis(pinacol)diborane
Conditions | Yield |
---|---|
With 2,6-dichloro-4,4’-bipyridine In cyclohexane at 60℃; for 16h; Reagent/catalyst; Temperature; Glovebox; Inert atmosphere; | 88% |
In pentane N2; ligand and B compd. (1.1:1 molar ratio) stirred at room temp. for 2 h; | 0% |
Conditions | Yield |
---|---|
In water addn. of an aq. soln. of Cu(ClO4)2*6H2O to an aq. soln. of 2,5-dimethylpyrazine, addn. of an aq. soln. of NaSCN to the mixt. and stirring; filtration of the yellow solid and washing with water and acetone; | 87% |
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate; silver orthophosphate In dichloromethane; water at 40℃; for 2h; | 87% |
Conditions | Yield |
---|---|
With ammonium hydroxide; air; antimony(III) trioxide; titanium(IV) oxide; molybdenum(VI) oxide at 440℃; Oxidation; ammonolysis; demethylation; | A 5% B 86% |
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine; benzoic acid ethyl ester With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 24h; Reflux; Stage #2: With boron trifluoride diethyl etherate; triethylamine In dichloromethane at 20℃; for 24h; | 86% |
2,5-dimethyl-pyrazine
4-dimethylamino-benzaldehyde
4,4′-(1E,1′E)-2,2′-(pyrazine-2,5-diyl)bis(ethene-2,1-diyl)bis(N,N-dimethylaniline)
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 0.25h; Stage #2: 4-dimethylamino-benzaldehyde In N,N-dimethyl-formamide at 80℃; for 4h; | 86% |
With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 4h; | 72% |
With potassium tert-butylate In N,N-dimethyl-formamide at 0 - 20℃; | 52% |
With potassium tert-butylate In N,N-dimethyl-formamide at 0℃; | 52% |
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-pyrazine With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 0.25h; Stage #2: (4-isopropylbenzaldehyde) In N,N-dimethyl-formamide at 80℃; for 4h; | 86% |
2,5-dimethyl-pyrazine
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate In dichloromethane; water at 50℃; for 24h; Minisci Aromatic Substitution; Inert atmosphere; Sealed tube; regioselective reaction; | 86% |
Conditions | Yield |
---|---|
With sodium peroxoborate In acetic acid for 6h; Reflux; | 85% |
With 3,3-dimethyldioxirane In acetone at 25℃; for 0.333333h; | 82% |
Stage #1: 2,5-dimethyl-pyrazine With acetic acid at 0℃; Stage #2: With dihydrogen peroxide In water at 20 - 60℃; | 68% |
With sodium peroxoborate tetrahydrate; acetic acid at 80℃; for 6h; | 60% |
With dihydrogen peroxide; acetic acid |
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