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Cas:1124-11-4
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inquiryUnique advantages for Tetramethylpyrazine Cas 1124-11-4 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White powder Storage:Store below +30°C Package:25kg/drum Application:F
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Product Description Product website: http://www.finerchem.com Product Name Tetramethylpyrazine CAS No. 1124-11-4
Cas:1124-11-4
Min.Order:1 Gram
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inquiryProduct Name: Tetramethylpyrazine Synonyms: BS Factor;Ligustrazine;Pyrazine,tetramethyl-;Tetramethylpyrazin;tetramethyl-pyrazin;FEMA 3237;FEMA NUMBER 3237;TETRAPYRAZINE CAS: 1124-11-4 MF: C8H12N2 MW: 136.19 EINECS: 214-391-2 Product Categorie
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inquiryOur 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
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Cas:1124-11-4
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Cas:1124-11-4
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Cas:1124-11-4
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Cas:1124-11-4
Min.Order:10 Gram
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inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:White crystal or powder / Refer to COA Storage:
Cas:1124-11-4
Min.Order:25 Kilogram
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inquiryOur 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 prese
Cas:1124-11-4
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inquiryTetramethylpyrazine CAS:1124-11-4 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 inter
Cas:1124-11-4
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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:1124-11-4
Min.Order:1 Kilogram
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inquiryProduct Detail Minimum Order Qty. 10 Gram
Cas:1124-11-4
Min.Order:10 Gram
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inquiryCompany information: Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in carbomer,carbopol,lead acetate,meglumine diphenyl ethylamine and other chemical raw materials and chemical reagents research and development production enterpr
Cas:1124-11-4
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Cas:1124-11-4
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inquiryTetramethylpyrazine manufacturer CAS:1124-11-4 Specification Appearance & Physical State white crystals or powder Density 1.08 Boiling Point 190ºC Melting Point 82-86ºC Flash
Cas:1124-11-4
Min.Order:1 Kilogram
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Type:Other
inquiryPRODUCT DETAILS Tetramethylpyrazine Basic information Description Chemical Characteristic Uses Preparation References Product Name: Tetramethylpyrazine
Cas:1124-11-4
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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:1124-11-4
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inquiryProduct Name: Tetramethylpyrazine Synonyms: Tetramethylpyrazine 1124-11-4;2 3 5 6-TETRAMETHYLPYRAZINE 98+%;Ligustrazine(tetramethylprazine);Ligustrazine(tetramethylpyrazine);2,3,5,6-TETRAMETHYLPYRAZINE WITH GC;2,3,5,6-TETRAMETHYL PYRAZINE, NATUR
Cas:1124-11-4
Min.Order:100 Gram
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inquiryTetramethylpyrazine
Conditions | Yield |
---|---|
With sodium hydroxide In water | 96% |
2,5-dichloro-3,6-dimethylpyrazine
trimethylaluminum
Tetramethylpyrazine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane; hexane for 4h; Heating; | 90% |
3-amino-butan-2-one
Tetramethylpyrazine
Conditions | Yield |
---|---|
Stage #1: 3-amino-butan-2-one With acetic acid for 1.3h; Stage #2: With potassium bromate; sodium hydrogensulfite Time; | 87.2% |
Conditions | Yield |
---|---|
With carbonylchlorohydrido(4,5-bis((diisopropylphosphino)methyl)acridine)ruthenium(II); ammonia In toluene at 150℃; under 5250.53 Torr; for 36h; Inert atmosphere; Glovebox; | 85% |
With aluminium oxide catalysts; ammonia at 400℃; |
butane-2,3-dione mono-oxime
Tetramethylpyrazine
Conditions | Yield |
---|---|
With palladium on activated charcoal; ammonium formate In water at 80 - 90℃; for 4h; Solvent; Temperature; | 84.6% |
With hydrogenchloride; tin Behandlung des entstandenen Methyl-<α-amino-aethyl>-ketons mit Alkalien; | |
With hydrogenchloride; tin(ll) chloride Behandlung des entstandenen Methyl-<α-amino-aethyl>-ketons mit Alkalien; |
Tetramethylpyrazine
Conditions | Yield |
---|---|
With sodium hydroxide In water | 76.1% |
3-Amino-2-butanone hydrochloride
Tetramethylpyrazine
Conditions | Yield |
---|---|
With air; sodium acetate In methanol at 60℃; | 73% |
Tetramethylpyrazine
Conditions | Yield |
---|---|
With sodium hydroxide In water pH=3 - ~ 8; | 61.1% |
Conditions | Yield |
---|---|
In water | 55.5% |
Conditions | Yield |
---|---|
With hydrogenchloride; pyridoxal 5'-phosphate; (S)-1,2,3,4-tetrahydronapht-1-yl-amine; amine transaminase-113 In water; dimethyl sulfoxide at 30℃; for 72h; pH=7.4; Reagent/catalyst; Enzymatic reaction; chemoselective reaction; | 50% |
Conditions | Yield |
---|---|
With titanium tetrachloride; zinc In tetrahydrofuran for 144h; Heating; | 44% |
With titanium tetrachloride; zinc In tetrahydrofuran for 144h; Heating; other nitriles; | 44% |
Conditions | Yield |
---|---|
und Einw. von Ammoniak; |
Conditions | Yield |
---|---|
With hydrogenchloride Destillieren des Reaktionsprodukts mit Quecksilber(II)-chlorid und Kaliumcarbonat; |
dimethyl glyoxime
Tetramethylpyrazine
Conditions | Yield |
---|---|
With ethanol; nickel at 70 - 90℃; Hydrogenation; |
Conditions | Yield |
---|---|
With ammonia |
Conditions | Yield |
---|---|
With pyridine Einw. von Ammoniak auf das Reaktionsprodukt; |
N-methyl-2,5-dimethylpyrazinium bromide
A
Tetramethylpyrazine
B
2,3,5-trimethylpyrazine
Conditions | Yield |
---|---|
at 275 - 280℃; |
Conditions | Yield |
---|---|
With sodium hydroxide; zinc |
2-<2-Hydroxy-2-(p-methylphenyl)ethyl>-3,5,6-trimethylpyrazine
A
Tetramethylpyrazine
B
4-methyl-benzaldehyde
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 160℃; Kinetics; Thermodynamic data; other temperature (170 deg C) investigated; ΔH(excit.) and ΔS(excit.) given; | |
In various solvent(s) at 171.5℃; Kinetics; in diglyme-d14; isotopic effect; |
2-<2-Hydroxy-2-(p-chlorophenyl)ethyl>-3,5,6-trimethylpyrazine
A
Tetramethylpyrazine
B
4-chlorobenzaldehyde
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 160℃; Kinetics; Thermodynamic data; other temperature (170 deg C) and other solvent (DMF) investigated; ΔH(excit.) and ΔS(excit.) given; |
2-<2-Hydroxy-2-(p-methoxyphenyl)ethyl>-3,5,6-trimethylpyrazine
A
Tetramethylpyrazine
B
4-methoxy-benzaldehyde
Conditions | Yield |
---|---|
In various solvent(s) at 171.5℃; Kinetics; in diglyme-d14; isotopic effect; | |
In diethylene glycol dimethyl ether at 160℃; Kinetics; Thermodynamic data; other temperature (170 deg C) and other solvent (DMF) investigated; ΔH(excit.) and ΔS(excit.) given; |
2-<2-Hydroxy-2-ethyl>-3,5,6-trimethylpyrazine
A
Tetramethylpyrazine
B
4-dimethylamino-benzaldehyde
Conditions | Yield |
---|---|
In various solvent(s) at 171.5℃; Kinetics; in diglyme-d14; isotopic effect; |
2-<2-Hydroxy-2-(p-nitrophenyl)ethyl>-3,5,6-trimethylpyrazine
A
Tetramethylpyrazine
B
4-nitrobenzaldehdye
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 160℃; Kinetics; Thermodynamic data; other temperature (170 deg C) investigated; ΔH(excit.) and ΔS(excit.) given; |
2-(2-Hydroxy-2-phenylethyl)-3,5,6-trimethylpyrazine
A
Tetramethylpyrazine
B
benzaldehyde
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 160℃; Kinetics; Thermodynamic data; other temperature (170 deg C) investigated; ΔH(excit.) and ΔS(excit.) given; |
3-azido-butan-2-one
Tetramethylpyrazine
Conditions | Yield |
---|---|
With sodium hydrogen telluride 1.) ethanol; 2.) Celite; Yield given. Multistep reaction; |
3-hydroxy-2-butanon
Tetramethylpyrazine
Conditions | Yield |
---|---|
With diammonium phosphate In water for 24h; Ambient temperature; | 42.6 % Chromat. |
With ammonium acetate at 85℃; for 4h; | |
With ammonium acetate In water at 25℃; under 735.5 Torr; Rate constant; Thermodynamic data; Mechanism; Ea; other ammonium salts; var. solvents, temperature and pressure; effect of high pressure; effect of propylene glycol; effect of nicotinamide adenine dinucleotide and flavin adenine dinucleotide as hydrogen acceptors; | |
With sodium hydroxide; ammonium phosphate; ammonium citrate In water at 85℃; for 5h; phosphate buffer, pH 7.2; reaction in acetate buffer, pH 7.2; addition of MeOH and EtOH; effects of a buffer and solvent on tetramethylpyrazine formation in a 3-hydroxy-2-butanone-ammonium hydroxide system; | |
With ammonium acetate In water |
3-hydroxy-2-butanon
A
Tetramethylpyrazine
Conditions | Yield |
---|---|
With diammonium phosphate In water for 24h; Product distribution; Mechanism; Ambient temperature; other acetols, other ammonia precursors, var. reaction time; | A 5.6 % Chromat. B 51.0 % Chromat. |
With diammonium phosphate In water for 24h; Ambient temperature; | A 5.6 % Chromat. B 51.0 % Chromat. |
3-hydroxy-2-butanon
A
2,4,5-trimethyloxazole
B
2,4,5-trimethyl-2,5-dihydro-1,3-oxazole
C
Tetramethylpyrazine
Conditions | Yield |
---|---|
With ammonium acetate In water at 25℃; Rate constant; Thermodynamic data; Mechanism; E(a); other solvents, var. temp.; |
3-hydroxy-2-butanon
A
2,4,5-trimethylthiazole
B
Tetramethylpyrazine
C
2-(1-mercaptoethyl)-2,4,5-trimethyl-3-thiazoline
Conditions | Yield |
---|---|
With hydrogenchloride; ammonium sulfide at 50℃; for 2h; Product distribution; var. temp.; |
Tetramethylpyrazine
Conditions | Yield |
---|---|
In dichloromethane-d2 shaking (25°C); solvent removal (N2, vac.); elem. anal.; | 100% |
Tetramethylpyrazine
Conditions | Yield |
---|---|
In dichloromethane-d2 shaking (25°C); solvent removal (N2, vac.); elem. anal.; | 100% |
Tetramethylpyrazine
carbon dioxide
3,5,6-trimethyl-2-pyrazinylacetic acid lithium salt
Conditions | Yield |
---|---|
With lithium diisopropyl amide In hexane 1) hexane, 0 deg C, 30 min, 2) 0 deg C, 30 min; | 99% |
Tetramethylpyrazine
Conditions | Yield |
---|---|
In acetone shaking (room temp., 5 min), NMR monitoring; solvent removal (dry N2), drying (vac.); elem. anal.; | 99% |
Tetramethylpyrazine
trans-{PtCl2(triethylphosphine)}2(2,3,5,6-tetamethylpyrazine)
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.; | 94% |
Tetramethylpyrazine
2-(bromomethyl)-3,5,6-trimethylpyrazine
Conditions | Yield |
---|---|
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane at 30℃; Reflux; | 92% |
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane | 75% |
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane at 75℃; for 10h; Incandescent irradiation; | 72.8% |
Tetramethylpyrazine
{Pt2Cl2(μ-Cl)2(PMePh2)2}
trans-{PtCl2(diphenylmethylphosphine)}2(2,3,5,6-tetramethylpyrazine)
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.; | 91% |
Conditions | Yield |
---|---|
With potassium tert-butylate In N,N-dimethyl-formamide at 23℃; for 4h; Inert atmosphere; | 91% |
Multi-step reaction with 2 steps 1: potassium tert-butylate / N,N-dimethyl-formamide 2: potassium tert-butylate / N,N-dimethyl-formamide View Scheme |
Conditions | Yield |
---|---|
Stage #1: Tetramethylpyrazine With n-butyllithium In tetrahydrofuran; hexane at -25 - 20℃; Inert atmosphere; Stage #2: acetylferrocene With acetic anhydride; acetic acid In tetrahydrofuran; hexane at 120℃; for 2h; Inert atmosphere; | 90% |
Tetramethylpyrazine
2,3,5,6-tetramethylpyrazine mono N-oxide
Conditions | Yield |
---|---|
With dihydrogen peroxide; acetic acid at 70℃; | 88.2% |
With dihydrogen peroxide; acetic acid at 0 - 60℃; | 82% |
With dihydrogen peroxide; acetic acid at 94℃; for 12h; | 78.8% |
Conditions | Yield |
---|---|
In methanol at 20℃; for 336h; | 88% |
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