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Dayang Chem (Hangzhou) Co.,Ltd.

As 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 ch

Aminopyrazine Manufacturer/High quality/Best price/In stock

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

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

High quality 2-Aminopyrazine? supplier in China

Cas:5049-61-6

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com Product Name Aminopyrazine CAS No. 5049-61-6

Aminopyrazine

Cas:5049-61-6

Min.Order:1 Gram

FOB Price: $8.0

Type:Lab/Research institutions

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Ality Chemical Corporation

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

Factory Supply 2-Aminopyrazine

Cas:5049-61-6

Min.Order:1

Negotiable

Type:Other

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ANQING CHICO PHARMACEUTICAL CO.,LTD.

High quality. Factory supply. In stock. Best price. 1.Quick response within 24 hours. 2.Best quality in your requirement. 3.We pay more attention on delivery time, and usually ship on time. 4.Free samples will be provided. 5.Ensure specifications an

Aminopyrazine

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Tengzhou Runlong Fragrance Co., Ltd.

1、Our factory passed ISO 9001, ISO 14001, ISO 22000 system certification; HALAL 、KOSHER、FCC AND FDA certificate are available. We can provide customers with better prices, and the supply is stable. 2、We founded in 2004,10% of the staff have more tha

Purity 99% Aminopyrazine CAS 5049-61-6

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

2-Amino Pyrazine

Cas:5049-61-6

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Chemwill Asia Co., Ltd.

Our 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

2-Aminopyrazine

Cas:5049-61-6

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Hebei yanxi chemical co.,LTD.

chengdu and import and export trade co., LTD., who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do res

2-AMinopyrazine

Cas:5049-61-6

Min.Order:5 Metric Ton

FOB Price: $110.0 / 150.0

Type:Trading Company

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Leader Biochemical Group

About Product Details

China Biggest factory Supply High Quality Aminopyrazine CAS 5049-61-6

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $1.0 / 5.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Aminopyrazine Basic information Product Name: Aminopyrazine Synonyms: AMINOPYRAZINE;2-AMINOPYRAZINE;APZ;TIMTEC-BB SBB004388;NSC 13147;PYRAZIN-2-AMINE;PYRAZINAMINE;P

TIANFU-CHEM Aminopyrazine 5049-61-6

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

With 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

2-aminopyrazine with best price

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $100.0 / 150.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

Factory direct supply CAS 5049-61-6 with best quality

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

Aminopyrazine CAS5049-61-6

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $289.0 / 499.0

Type:Trading Company

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our 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

Factory Supply High Quality CAS 5049-61-6 ,2-Aminopyrazine

Cas:5049-61-6

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Henan Sinotech Import&Export Corporation

CAS NO:5049-61-6 Appearance: White Powder Storagr:Keep in a cool and dry place Usage:Use for parmaceutical intermediates or chemical reaserch Appearance: white powder Storage:Store in cool and dry place, away from sun light. Package: 25K

2-Aminopyrazine CAS: 5049-61-6

Cas:5049-61-6

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Shanghai Upbio Tech Co.,Ltd

1.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

Aminopyrazine 5049-61-6

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: Aminopyrazine CAS: 5049-61-6 MF: C4H5N3 MW: 95.1 EINECS: 225-748-7 Aminopyrazine Structure Aminopyrazine Chemical Properties Melting point 118-120 °C (lit.) Boiling point 167.6°C (rough estimate) density

Aminopyrazine

Cas:5049-61-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Baoji Guokang Healthchem co.,ltd

Our 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

Syntheses Material Intermediate, Aminopyrazine CAS:5049-61-6

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $80.0 / 84.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

Aminopyrazine CAS: 5049-61-6 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 intermediat

Aminopyrazine CAS: 5049-61-6

Cas:5049-61-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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

Aminopyrazine

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

CAS 5049-61-6 Aminopyrazine

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

Aminopyrazine

Cas:5049-61-6

Min.Order:1 Kilogram

FOB Price: $20.0 / 60.0

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

Aminopyrazine

Cas:5049-61-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen Hisunny Chemical Co.,Ltd

Best 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

2-Aminopyrazine

Cas:5049-61-6

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

Aminopyrazine

Cas:5049-61-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

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

2-Aminopyrazine

Cas:5049-61-6

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

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

2-aminopyrazine

Cas:5049-61-6

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A 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

pyrazin-2-amine

Cas:5049-61-6

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Fonlynn Health Technology Co., Ltd.

Packing: 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 Transportation:Express/Sea/Air Port:Ningbo/Shanghai/Qingd

2-Aminopyrazine

Cas:5049-61-6

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

2-iodopyrazine
32111-21-0

2-iodopyrazine

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With copper(I) oxide; ammonia; potassium carbonate In 1,4-dioxane at 140℃; under 7757.43 Torr; for 16h;92%
With copper(I) oxide; ammonium hydroxide; potassium carbonate at 140℃; for 16h; Inert atmosphere;49%
2-amino-3,5-dibromopyrazine
24241-18-7

2-amino-3,5-dibromopyrazine

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

5-amino-2-bromopyrazine
59489-71-3

5-amino-2-bromopyrazine

Conditions
ConditionsYield
With palladium diacetate; 1,8-diazabicyclo[5.4.0]undec-7-ene; triphenylphosphine In dimethyl sulfoxide regioselective reaction;A 10%
B 87%
2-pyrazine carbonitrile
19847-12-2

2-pyrazine carbonitrile

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With sodium hypochlorite; sodium hydroxide at 20 - 60℃; for 5h;82.6%
With sodium hypochlorite; potassium hydroxide; sodium hydroxide at 40℃; for 2h; pH=8; Temperature;
With sodium hypochlorite; water; sodium hydroxide at -5 - 100℃;74 g
2-chloropyrazin
14508-49-7

2-chloropyrazin

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

di(pyrazin-2-yl)amine
533930-18-6

di(pyrazin-2-yl)amine

Conditions
ConditionsYield
With C46H71Cl3N2Pd; ammonia; sodium t-butanolate In 1,4-dioxane at 100℃; for 16h; Inert atmosphere; Schlenk technique;A 79%
B n/a
2-chloropyrazin
14508-49-7

2-chloropyrazin

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With dicyclohexyl(2',4',6'-triisopropyl-5-methoxy-3,4,6-trimethyl-[1,1'-biphenyl]-2-yl)phosphine; C50H70NO4PPdS; C50H70NO4PPdS; dicyclohexyl(2',4',6'-triisopropyl-4-methoxy-3,5,6-trimethyl-[1,1'-biphenyl]-2-yl)phosphine; ammonia; sodium t-butanolate In 1,4-dioxane at 50℃; for 24h; Inert atmosphere;75%
With ammonia; water at 200℃;
With ammonia In dimethyl sulfoxide at 130℃;
phthalimide
136918-14-4

phthalimide

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

2-(5-Amino-pyrazin-2-ylmethyl)-isoindole-1,3-dione
457099-33-1

2-(5-Amino-pyrazin-2-ylmethyl)-isoindole-1,3-dione

Conditions
ConditionsYield
With sodium carbonate In CH2Cl2/MeOH; dichloromethane; trifluoroacetic acidA n/a
B 73%
1,4-pyrazine
290-37-9

1,4-pyrazine

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With potassium permanganate; potassium amide In ammonia for 0.166667h;65%
2-fluoropyrazine
4949-13-7

2-fluoropyrazine

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With acetamidine hydrochloride; sodium hydroxide In water; dimethyl sulfoxide at 130℃; for 24h; Schlenk technique; chemoselective reaction;52%
2-(1-hydroxyethyl)pyrazine
94777-52-3

2-(1-hydroxyethyl)pyrazine

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With sodium azide; methanesulfonic acid; trifluoroacetic acid In hexane at 40℃; for 12h;45%
N-cyclohexyl-2-phenylimidazo[1,2-a]pyrazin-3-amine

N-cyclohexyl-2-phenylimidazo[1,2-a]pyrazin-3-amine

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

N-cicloesil-α-ossofenilacetamide
724-92-5

N-cicloesil-α-ossofenilacetamide

Conditions
ConditionsYield
With [bis(acetoxy)iodo]benzene; toluene-4-sulfonic acid In 1,2-dichloro-ethane at 20℃; for 1h; Schlenk technique; chemoselective reaction;A n/a
B 28%
N-(3',5'-dibromopyrazin-2'-yl)pyridinium aminide
475641-51-1

N-(3',5'-dibromopyrazin-2'-yl)pyridinium aminide

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

1,4,8a,9-tetraaza-fluorene

1,4,8a,9-tetraaza-fluorene

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); tris-(trimethylsilyl)silane; potassium carbonate In acetonitrile; benzene at 80℃; for 24h;A 20%
B 24%
N-(3',5'-dibromopyrazin-2'-yl)pyridinium aminide
475641-51-1

N-(3',5'-dibromopyrazin-2'-yl)pyridinium aminide

benzene
71-43-2

benzene

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

1,4,8a,9-tetraaza-fluorene

1,4,8a,9-tetraaza-fluorene

C

3-phenyl-pyrido[1',2':2,3]pyrazolo[5,4-b]pyrazine

3-phenyl-pyrido[1',2':2,3]pyrazolo[5,4-b]pyrazine

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); tris-(trimethylsilyl)silane; potassium carbonate In acetonitrile at 80℃; for 24h;A 20%
B 24%
C 20%
pyrazinamide
98-96-4

pyrazinamide

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With sodium hypochlorite Behandeln des erhaltenen Natrium-Salzes der Pyrazinylcarbamidsaeure C5H5N3O2(Kristalle;Verfaerbung ab 257grad)mit wss.Saeuren.;
3-aminopyrazinoic acid
5424-01-1

3-aminopyrazinoic acid

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With diethylene glycol monoethyl ether acetate at 210 - 245℃;
With nitrobenzene
Erhitzen ueber den Schmelzpunkt;
Lumazine
487-21-8

Lumazine

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With sulfuric acid at 240 - 245℃;
Pyrazin-N-Oxid(PyzNO)
2423-65-6

Pyrazin-N-Oxid(PyzNO)

A

2-chloropyrazin
14508-49-7

2-chloropyrazin

B

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With sodium hydroxide; trichlorophosphate 1) 70 deg C, 2 h; Yield given. Multistep reaction. Yields of byproduct given;
N-(Tetrazolyl-5')-2-pyrazinylamine
88002-29-3

N-(Tetrazolyl-5')-2-pyrazinylamine

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

[1,2,4] triazolo[1,5-a]pyrazin-2-amine
88002-33-9

[1,2,4] triazolo[1,5-a]pyrazin-2-amine

Conditions
ConditionsYield
With PPA at 290℃;
9-tert-butylfluorene
17114-78-2

9-tert-butylfluorene

C4H4N3(1-)*K(1+)

C4H4N3(1-)*K(1+)

A

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

B

potassium salt of 9-tert-butylfluorene
106358-48-9

potassium salt of 9-tert-butylfluorene

Conditions
ConditionsYield
In dimethyl sulfoxide at 24.9℃; Equilibrium constant;
2-pyrazylcarboxylic acid
98-97-5

2-pyrazylcarboxylic acid

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
With polystyrene Wang resin; diphenylphosphoranyl azide; triethylamine; trifluoroacetic acid 1.) toluene, 100 deg C, 16 h, 2.) CH2Cl2, 5 min; Yield given; Multistep reaction;
Lumazine
487-21-8

Lumazine

sulfuric acid
7664-93-9

sulfuric acid

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
at 240 - 245℃;
3-amino-pyrazine-carboxylic acid-(2)

3-amino-pyrazine-carboxylic acid-(2)

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Conditions
ConditionsYield
beim Erhitzen ueber den Schmelzpunkt;
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

2-chloroethanal
107-20-0

2-chloroethanal

imidazo[1,2-a]pyrazine
274-79-3

imidazo[1,2-a]pyrazine

Conditions
ConditionsYield
at 70℃;100%
With sodium hydrogencarbonate at 100℃; for 48h; Inert atmosphere;50%
With sodium hydrogencarbonate at 100℃; for 48h;50%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

phenylglyoxal hydrate
1074-12-0

phenylglyoxal hydrate

2-phenylimidazo<1,2-a>pyrazin-3(7H)-one
27955-58-4

2-phenylimidazo<1,2-a>pyrazin-3(7H)-one

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In dichloromethane for 168h;100%
With hydrogenchloride In ethanol at 20 - 25℃; for 18h;49%
With hydrogenchloride In ethanol; water at 20℃; for 15h; Cyclization;20%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

4-chlorophenylglyoxal
4998-15-6

4-chlorophenylglyoxal

2-(4-Chloro-phenyl)-7H-imidazo[1,2-a]pyrazin-3-one
123488-69-7

2-(4-Chloro-phenyl)-7H-imidazo[1,2-a]pyrazin-3-one

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In dichloromethane for 264h;100%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

(E)-N,N-dimethyl-N'-(pyrazin-2-yl)formimidamide

(E)-N,N-dimethyl-N'-(pyrazin-2-yl)formimidamide

Conditions
ConditionsYield
In toluene for 2.25h; Heating / reflux;100%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

methyl (2S,4R)-N-(tert-butyloxy)carbonyl-4-fluoropyrrolidine-2-carboxylate
203866-18-6

methyl (2S,4R)-N-(tert-butyloxy)carbonyl-4-fluoropyrrolidine-2-carboxylate

(2S,4R)-1-(4-(3-cyclopropyl-1H-pyrazol-5-ylamino)-6-morpholino-1,3,5-triazin-2-yl)-4-fluoro-N-(pyrazin-2-yl)pyrrolidine-2-carboxamide
1109790-67-1

(2S,4R)-1-(4-(3-cyclopropyl-1H-pyrazol-5-ylamino)-6-morpholino-1,3,5-triazin-2-yl)-4-fluoro-N-(pyrazin-2-yl)pyrrolidine-2-carboxamide

Conditions
ConditionsYield
Stage #1: 2-Aminopyrazine With isopropylmagnesium chloride In tetrahydrofuran at 0 - 20℃;
Stage #2: methyl (2S,4R)-N-(tert-butyloxy)carbonyl-4-fluoropyrrolidine-2-carboxylate In tetrahydrofuran at 20℃; for 4h;
100%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

water
7732-18-5

water

cadmium(II) acetate
543-90-8

cadmium(II) acetate

Cd(aminopyrazine)(acetate)2(H20)

Cd(aminopyrazine)(acetate)2(H20)

Conditions
ConditionsYield
In ethanol at 25℃;100%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

2-aminopyrazine 1-oxide
21720-40-1

2-aminopyrazine 1-oxide

Conditions
ConditionsYield
With hydrogen fluoride; 3-chloro-benzenecarboperoxoic acid In methanol; N,N-dimethyl-formamide at 25℃; for 1h;99%
With 3-chloro-benzenecarboperoxoic acid In acetone for 24h; Ambient temperature;63%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Cyclohexyl isocyanide
931-53-3

Cyclohexyl isocyanide

benzaldehyde
100-52-7

benzaldehyde

N-cyclohexyl-2-phenylimidazo[1,2-a]pyrazin-3-amine

N-cyclohexyl-2-phenylimidazo[1,2-a]pyrazin-3-amine

Conditions
ConditionsYield
With lanthanum chloride heptahydrate In neat (no solvent) at 60℃; for 0.416667h; Green chemistry;99%
In neat (no solvent) at 20℃; for 2.5h; Sealed tube; Irradiation; Green chemistry;96%
In neat (no solvent) at 160℃; for 1.5h; Green chemistry;95%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

o-nitroiodobenzene
609-73-4

o-nitroiodobenzene

N-(2-nitrophenyl)pyrazin-2-amine

N-(2-nitrophenyl)pyrazin-2-amine

Conditions
ConditionsYield
With sodium phenoxide; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; tris(dibenzylideneacetone)dipalladium (0) In 1,4-dioxane at 80℃; for 2h;99%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Cu2(1,1'-(1,3-phenylene)-bis(4,4-dimethylpentane-1,3-dione(2-))2
912540-27-3

Cu2(1,1'-(1,3-phenylene)-bis(4,4-dimethylpentane-1,3-dione(2-))2

[Cu2(1,1'-(1,3-phenylene)-bis(4,4-dimethylpentane-1,3-dione(2-))2(aminopyrazine)]2
912540-09-1

[Cu2(1,1'-(1,3-phenylene)-bis(4,4-dimethylpentane-1,3-dione(2-))2(aminopyrazine)]2

Conditions
ConditionsYield
In tetrahydrofuran stirred soln. of Cu-complex and ligand in THF brought to boiling, cooled; Et2O slow diffused; elem. anal.;99%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

1-Naphthalenesulfonyl chloride
85-46-1

1-Naphthalenesulfonyl chloride

N-pyrazin-2-yl-1-naphthalenesulfonamide

N-pyrazin-2-yl-1-naphthalenesulfonamide

Conditions
ConditionsYield
With pyridine at 0℃; for 2h; Inert atmosphere;99%
3-Chloropyridine
626-60-8

3-Chloropyridine

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

N-(pyridin-3-yl)-pyrazin-2-amine
1028223-88-2

N-(pyridin-3-yl)-pyrazin-2-amine

Conditions
ConditionsYield
With dicyclohexyl-(2′,4′,6′-triisopropyl-3,6-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine; [(π-crotyl)Pd(BrettPhos)]OTf; potassium carbonate In tert-Amyl alcohol at 110℃; for 2h; Schlenk technique; Inert atmosphere;99%
With dicyclohexyl-(2′,4′,6′-triisopropyl-3,6-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine; [(π-crotyl)Pd(BrettPhos)]OTf; potassium carbonate In tert-Amyl alcohol at 110℃; for 2h; Schlenk technique; Inert atmosphere;99%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

2-amino-3,5-dibromopyrazine
24241-18-7

2-amino-3,5-dibromopyrazine

Conditions
ConditionsYield
With N-Bromosuccinimide In acetonitrile at 100℃; for 0.0833333h; Solvent; Microwave irradiation;98%
With 2,6-dimethylpyridine; bromine In dichloromethane95%
With bromine; sodium hydrogencarbonate In acetic acid 1.) 2h, 2.) 1h;91%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

2-methylphenyl bromide
95-46-5

2-methylphenyl bromide

N-o-tolylpyrazin-2-amine

N-o-tolylpyrazin-2-amine

Conditions
ConditionsYield
With caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; tris(dibenzylideneacetone)dipalladium (0) In 1,4-dioxane at 100℃; for 20h;98%
With copper(l) iodide; potassium carbonate; N,N`-dimethylethylenediamine In 1,4-dioxane at 100℃; for 24h;74%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

4-methyl-benzaldehyde
104-87-0

4-methyl-benzaldehyde

β-naphthol
135-19-3

β-naphthol

1-[p-methylphenyl(2-pyrazinylamino)methyl]naphthalene-2-ol
1094443-81-8

1-[p-methylphenyl(2-pyrazinylamino)methyl]naphthalene-2-ol

Conditions
ConditionsYield
In water at 20℃; for 0.666667h;98%
at 125℃; for 0.0666667h; Mannich reaction; Neat (no solvent);89%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

4-chlorobenzaldehyde
104-88-1

4-chlorobenzaldehyde

β-naphthol
135-19-3

β-naphthol

1-[p-chlorophenyl(2-pyrazinylamino)methyl]naphthalene-2-ol
1094443-78-3

1-[p-chlorophenyl(2-pyrazinylamino)methyl]naphthalene-2-ol

Conditions
ConditionsYield
In water at 20℃; for 0.666667h;98%
at 125℃; for 0.0666667h; Mannich reaction; Neat (no solvent);90%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

4-bromo-benzaldehyde
1122-91-4

4-bromo-benzaldehyde

β-naphthol
135-19-3

β-naphthol

1-[p-bromophenyl(2-pyrazinylamino)methyl]naphthalene-2-ol
1094443-85-2

1-[p-bromophenyl(2-pyrazinylamino)methyl]naphthalene-2-ol

Conditions
ConditionsYield
In water at 20℃; for 0.416667h;98%
at 125℃; for 0.1h; Mannich reaction; Neat (no solvent);93%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

2C21H11O6(3-)*C4H4N2*3Cu(2+)*H2O*13C3H7NO

2C21H11O6(3-)*C4H4N2*3Cu(2+)*H2O*13C3H7NO

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

2C21H11O6(3-)*C4H5N3*3Cu(2+)*H2O*12C3H7NO

2C21H11O6(3-)*C4H5N3*3Cu(2+)*H2O*12C3H7NO

Conditions
ConditionsYield
at 120℃; for 6h; Autoclave;98%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

ethyl trifluoroacetate,
383-63-1

ethyl trifluoroacetate,

2,2,2-trifluoro-N-(pyrazin-2-yl)acetamide
129476-64-8

2,2,2-trifluoro-N-(pyrazin-2-yl)acetamide

Conditions
ConditionsYield
With dmap In tetrahydrofuran for 48h; Reflux;97.8%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

triphenylphosphine
603-35-0

triphenylphosphine

1,1,1-triphenyl-N-(pyrazin-2-yl)-λ5-phosphanimine
69982-02-1

1,1,1-triphenyl-N-(pyrazin-2-yl)-λ5-phosphanimine

Conditions
ConditionsYield
With diethylazodicarboxylate In dichloromethane; toluene at 20℃; for 2.16667h; Mitsunobu type reaction;97%
With hexachloroethane; triethylamine In acetonitrile 12 h, RT, then, reflux, 6 h;64%
With hexachloroethane; triethylamine In benzene for 3h; Heating;64%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

2,3-dibromopyridine
13534-89-9

2,3-dibromopyridine

A

pyrido[3',2':4,5]imidazo[1,2-a]pyrazine

pyrido[3',2':4,5]imidazo[1,2-a]pyrazine

B

pyrido[2',3':4,5]imidazo[1,2-a]pyrazine

pyrido[2',3':4,5]imidazo[1,2-a]pyrazine

Conditions
ConditionsYield
With tris(dibenzylideneacetone)dipalladium (0); caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In 1,2-dimethoxyethane at 140℃; for 24h;A n/a
B 97%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

benzaldehyde
100-52-7

benzaldehyde

β-naphthol
135-19-3

β-naphthol

1-[phenyl(2-pyrazinylamino)methyl]naphthalene-2-ol
1094443-75-0

1-[phenyl(2-pyrazinylamino)methyl]naphthalene-2-ol

Conditions
ConditionsYield
In water at 20℃; for 0.583333h;97%
at 125℃; for 0.05h; Mannich reaction; Neat (no solvent);94%
cis,trans-2,5-dimethoxytetrahydrofuran
696-59-3

cis,trans-2,5-dimethoxytetrahydrofuran

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

(pyrrolyl-1)-2 pyrazine
50966-75-1

(pyrrolyl-1)-2 pyrazine

Conditions
ConditionsYield
In water at 150℃; for 0.5h; Paal-Knorr condensation; Microwave irradiation;97%
5-Methylfurfural
620-02-0

5-Methylfurfural

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

Cyclohexyl isocyanide
931-53-3

Cyclohexyl isocyanide

N-cyclohexyl-2-(5-methylfuran-2-yl)imidazo[1,2-a]pyrazin-3-amine
879592-50-4

N-cyclohexyl-2-(5-methylfuran-2-yl)imidazo[1,2-a]pyrazin-3-amine

Conditions
ConditionsYield
Stage #1: 5-Methylfurfural; 2-Aminopyrazine With scandium tris(trifluoromethanesulfonate) In methanol at 20℃; for 1h; Ugi reaction;
Stage #2: Cyclohexyl isocyanide In methanol Ugi reaction;
97%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

methanol
67-56-1

methanol

N-methylpyrazin-2-amine
32111-28-7

N-methylpyrazin-2-amine

Conditions
ConditionsYield
With C19H37IrN4(2+)*2I(1-); potassium carbonate at 120℃; for 24h; Inert atmosphere; Schlenk technique; Sealed tube;97%
With [Cp*Ir(2-(1H-benzo[d]imidazol-2-yl)-1H-benzo[d]imidazole)Cl][Cl]; caesium carbonate at 120℃; for 12h; Schlenk technique;95%
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; sodium hydroxide at 150℃; for 12h; Inert atmosphere; Schlenk technique; Green chemistry;90%
2,3-dihydro-2H-furan
1191-99-7

2,3-dihydro-2H-furan

2-Aminopyrazine
5049-61-6

2-Aminopyrazine

1-(pyrazin-2-yl)pyrrolidin-2-ol

1-(pyrazin-2-yl)pyrrolidin-2-ol

Conditions
ConditionsYield
With cerium(III) chloride heptahydrate In acetonitrile at 60℃;97%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

tert-butylisonitrile
119072-55-8, 7188-38-7

tert-butylisonitrile

2-ethynylbenzaldehyde
38846-64-9

2-ethynylbenzaldehyde

N-(tert-butyl)-2-(2-ethynylphenyl)imidazo[1,2-a]pyrazin-3-amine

N-(tert-butyl)-2-(2-ethynylphenyl)imidazo[1,2-a]pyrazin-3-amine

Conditions
ConditionsYield
With toluene-4-sulfonic acid In methanol at 20℃; for 12h; Inert atmosphere;96%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

phosphonic acid diethyl ester
762-04-9

phosphonic acid diethyl ester

tetraethyl [(pyrazin-2-ylamino)methylene]bis(phosphonate)
586344-70-9

tetraethyl [(pyrazin-2-ylamino)methylene]bis(phosphonate)

Conditions
ConditionsYield
With copper(II) oxide In neat (no solvent) at 60℃; Microwave irradiation; Green chemistry;96%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

diphenyl sulfide
139-66-2

diphenyl sulfide

N-phenylpyrazin-2-ylamine
13134-34-4

N-phenylpyrazin-2-ylamine

Conditions
ConditionsYield
With SingaCycle-A1; potassium hexamethylsilazane In toluene at 100℃; for 24h; Schlenk technique; Inert atmosphere;96%
2-Aminopyrazine
5049-61-6

2-Aminopyrazine

water
7732-18-5

water

zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

Zn(2+)*2C4H5N3*2C2H3O2(1-)*4H2O

Zn(2+)*2C4H5N3*2C2H3O2(1-)*4H2O

Conditions
ConditionsYield
at 25℃; for 2h;96%

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