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:3430-26-0
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inquiryProduct Description Product website: http://www.finerchem.com Product Name 2,5-Dibromo-4-methylpyridine CAS No. 3430-26-0 Appearanc
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inquiryHigh quality 2,5-Dibromo-4-methylpyridine CAS 3430-26-0 with factory price Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food
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Min.Order:10 Kilogram
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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
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inquiry2,5-Dibromo-4-methylpyridine Basic information Product Name: 2,5-Dibromo-4-methylpyridine Synonyms: TIMTEC-BB SBB003142;2,5-DIBROMO-4-METHYLPYRIDINE;2,5-DIBROMO-4-PICOLINE;2,3-dibromo-4-
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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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Min.Order:1 Gram
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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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inquiryName: 2,5-Dibromo-4-picoline Molecular Formula:C6H5Br2N Molecular Weight:250.92 CAS No.:3430-26-0 Appearance:Similar White To Brown Solid Appearance:Similar White To Brown Solid Storage:Store in cool and dry place, away from sun light. Package:25
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Min.Order:1 Kilogram
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Min.Order:1 Gram
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Cas:3430-26-0
Min.Order:10 Kilogram
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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
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inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
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Min.Order:0 Metric Ton
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inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
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Min.Order:1 Gram
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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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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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Min.Order:4 Kilogram
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Cas:3430-26-0
Min.Order:100 Gram
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Min.Order:1 Gram
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Cas:3430-26-0
Min.Order:10 Gram
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inquiryConditions | Yield |
---|---|
Stage #1: 2,5-dibromopyridine With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 0.166667h; Stage #2: methyl iodide In tetrahydrofuran for 0.5h; | 86% |
2-amino-5-bromo-4-methylpyridine
2,5-Dibromo-4-methylpyridine
Conditions | Yield |
---|---|
Stage #1: 2-amino-5-bromo-4-methylpyridine With hydrogen bromide; bromine; sodium nitrite In water at 0 - 5℃; for 1h; Stage #2: With sodium hydroxide In water at 20℃; pH=~ 13; | 68% |
Stage #1: 2-amino-5-bromo-4-methylpyridine With hydrogen bromide; bromine; sodium nitrite In water at 0 - 5℃; for 1h; Stage #2: With sodium hydroxide In water pH=~ 13; | 68% |
zinc(II) cyanide
2,5-Dibromo-4-methylpyridine
5-bromo-4-methyl-pyridine-2-carbonitrile
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0) In N,N-dimethyl-formamide at 150℃; for 0.0833333h; Negishi Coupling; Microwave irradiation; regioselective reaction; | 100% |
2,5-Dibromo-4-methylpyridine
5-bromo-4-methyl-2-vinyl-pyridine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water at 80℃; for 15h; Suzuki Coupling; Inert atmosphere; | 99% |
With potassium carbonate; tetrakis(triphenylphosphine) palladium(0) In 1,2-dimethoxyethane; water at 80℃; for 15h; Suzuki Coupling; | |
With potassium carbonate; tetrakis(triphenylphosphine) palladium(0) In 1,2-dimethoxyethane; water at 80℃; for 15h; Inert atmosphere; |
2,5-Dibromo-4-methylpyridine
cis-2,6-dimethylpiperazine
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dimethyl sulfoxide at 110℃; for 18h; | 96% |
2,5-Dibromo-4-methylpyridine
sodium ethanolate
5-bromo-2-ethoxy-4-methylpyridine
Conditions | Yield |
---|---|
In 1-methyl-pyrrolidin-2-one at 40 - 70℃; for 2h; Time; | 95% |
2,5-Dibromo-4-methylpyridine
m-tolylboronic acid
Conditions | Yield |
---|---|
With dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate monohydrate In water; toluene for 16h; Inert atmosphere; Reflux; | 93.3% |
1-(1-methylethyl)piperazine
2,5-Dibromo-4-methylpyridine
1-(5-bromo-4-methylpyridin-2-yl)-3-isopropyl-piperazine
Conditions | Yield |
---|---|
With pyridine for 5h; Heating / reflux; | 90% |
2,5-Dibromo-4-methylpyridine
phenylboronic acid
5-bromo-4-methyl-2-phenylpyridine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water at 90℃; for 12h; Inert atmosphere; | 90% |
With palladium diacetate; potassium carbonate; triphenylphosphine In methanol; acetonitrile at 50℃; for 24h; Suzuki Coupling; Inert atmosphere; regioselective reaction; | 82% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water Reflux; | 77% |
Conditions | Yield |
---|---|
With copper(l) iodide; palladium(II) trifluoroacetate; palladium diacetate; diisopropylamine In methanol; acetonitrile for 24h; Reflux; Inert atmosphere; regioselective reaction; | 90% |
Conditions | Yield |
---|---|
With dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate monohydrate In water; toluene for 16h; Inert atmosphere; Reflux; | 87.2% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In toluene at 90℃; for 12h; Schlenk technique; Inert atmosphere; | 81% |
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In toluene at 120℃; for 2h; Inert atmosphere; | 15.3 g |
Conditions | Yield |
---|---|
Stage #1: acetonitrile With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.75h; Metallation; Stage #2: 2,5-Dibromo-4-methylpyridine In tetrahydrofuran; hexane at -78 - 20℃; for 2.5h; Alkylation; | 86% |
2,5-Dibromo-4-methylpyridine
3-Biphenylboronic acid
2-([1,1'-biphenyl]-3-yl)-4,5-dimethylpyridine
Conditions | Yield |
---|---|
With potassium carbonate; tetrakis(triphenylphosphine) palladium(0) In water; toluene for 18.33h; Inert atmosphere; Reflux; | 85% |
Conditions | Yield |
---|---|
Stage #1: 2,5-Dibromo-4-methylpyridine With n-butyllithium In diethyl ether; hexane at -78℃; for 2h; Stage #2: chloro-trimethyl-silane In diethyl ether; hexane at -78 - 20℃; for 17h; | 85% |
2,5-Dibromo-4-methylpyridine
(tert-butyldimethylsilyl)acetylene
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In N,N-dimethyl-formamide at 50℃; for 2h; Inert atmosphere; | 83.9% |
2,5-Dibromo-4-methylpyridine
acetone
2-(5-bromo-4-methylpyridin-2-yl)propan-2-ol
Conditions | Yield |
---|---|
Stage #1: 2,5-Dibromo-4-methylpyridine With n-butyllithium In hexane; toluene at -78℃; for 0.5h; Inert atmosphere; Stage #2: acetone at -78 - 20℃; for 2h; | 82% |
Stage #1: 2,5-Dibromo-4-methylpyridine With n-butyllithium In toluene at -78℃; Stage #2: acetone In toluene at -78 - 20℃; Stage #3: With water; ammonium chloride In toluene | 63.5% |
Stage #1: 2,5-Dibromo-4-methylpyridine With n-butyllithium In toluene at -78℃; for 1h; Stage #2: acetone In toluene at -78 - 20℃; for 1h; |
2,5-Dibromo-4-methylpyridine
(2-aminopyrimidin-5-yl)boronic acid
5-(5-bromo-4-methylpyridin-2-yl)pyrimidin-2-amine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,4-dioxane; water at 95℃; for 2h; | 82% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,4-dioxane; water at 95℃; for 2h; | 82% |
2,5-Dibromo-4-methylpyridine
Conditions | Yield |
---|---|
With palladium diacetate; triphenylphosphine; potassium hydroxide In acetonitrile at 50℃; for 18h; | 81% |
With palladium diacetate; potassium carbonate; triphenylphosphine In acetonitrile at 50℃; for 24h; | 81% |
2,5-Dibromo-4-methylpyridine
4-methylphenylboronic acid
3-bromo-4-methyl-6-(p-tolyl)pyridine
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In methanol; acetonitrile at 60℃; for 4h; Inert atmosphere; | 80% |
2,5-Dibromo-4-methylpyridine
4-dibenzofurylboronic acid
5-bromo-2-(dibenzo[b,d]furan-4-yl)-4-methylpyridine
Conditions | Yield |
---|---|
With potassium carbonate; tetrakis(triphenylphosphine) palladium(0) In 1,2-dimethoxyethane; water for 15h; Inert atmosphere; Reflux; | 72% |
In 1,2-dimethoxyethane; water; ethyl acetate | 72% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water for 15h; Inert atmosphere; Reflux; | 72% |
With potassium carbonate; Pd(PPh3)4 In 1,2-dimethoxyethane; water; ethyl acetate | 28.8 g (72%) |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene In toluene at 120℃; for 19.5h; Inert atmosphere; Molecular sieve; Sealed tube; | 71% |
2,5-Dibromo-4-methylpyridine
trivinylboroxin
5-bromo-4-methyl-2-vinyl-pyridine
Conditions | Yield |
---|---|
With potassium carbonate; tetrakis(triphenylphosphine) palladium(0) In 1,2-dimethoxyethane; water at 100℃; for 4h; | 70% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water at 100℃; for 4h; | 70% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water at 100℃; for 4h; | 70% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,2-dimethoxyethane; water at 100℃; for 4h; | 70% |
Conditions | Yield |
---|---|
Stage #1: 2,5-Dibromo-4-methylpyridine With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 1.5h; Inert atmosphere; Schlenk technique; Stage #2: 1-bromo-hexane In tetrahydrofuran at 20℃; Inert atmosphere; Schlenk technique; | 70% |
2,5-Dibromo-4-methylpyridine
azetidine hydrochloride
Conditions | Yield |
---|---|
With caesium carbonate In dimethyl sulfoxide at 90℃; for 20h; | 66% |
2,5-Dibromo-4-methylpyridine
Conditions | Yield |
---|---|
Stage #1: C12H10Br2N2Te2 With sodium hydroxide; hydrazine hydrate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 2,5-Dibromo-4-methylpyridine In tetrahydrofuran; N,N-dimethyl-formamide for 24h; Heating; | 65% |
2,5-Dibromo-4-methylpyridine
2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-thiazole
5-(5-bromo-4-methylpyridin-2-yl)-2-methylthiazole
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,4-dioxane; water at 95℃; for 3h; | 64% |
With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In 1,4-dioxane; water at 95℃; for 3h; | 64% |
Conditions | Yield |
---|---|
Stage #1: 2-methoxy-ethanol With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.5h; Stage #2: 2,5-Dibromo-4-methylpyridine In tetrahydrofuran; mineral oil at 0 - 80℃; | 61% |
Stage #1: 2-methoxy-ethanol With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.5h; Stage #2: 2,5-Dibromo-4-methylpyridine In tetrahydrofuran; mineral oil at 0 - 80℃; | 61% |
Stage #1: 2-methoxy-ethanol With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 0.5h; Stage #2: 2,5-Dibromo-4-methylpyridine In tetrahydrofuran; mineral oil at 0 - 80℃; | 61% |
Conditions | Yield |
---|---|
With palladium diacetate; potassium carbonate; triphenylphosphine In ethanol; acetonitrile for 48h; Reflux; | 61% |
2,5-Dibromo-4-methylpyridine
(2-oxo-1,2-dihydropyridin-3-yl)boronic acid
Conditions | Yield |
---|---|
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate In 1,4-dioxane; water at 90℃; for 18h; | 60.6% |
sodium cyanide
2,5-Dibromo-4-methylpyridine
5-bromo-4-methyl-pyridine-2-carbonitrile
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 158℃; for 3h; sealed vessel; | 58% |
In N,N-dimethyl-formamide for 20h; Reflux; | 42.4% |
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