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

Base Information

• Chemical Name: [1,2,4]Triazolo[1,5-a]pyrazin-2-amine
• CAS No.: 88002-33-9
• Molecular Formula: C5H5N5
• Molecular Weight: 135.128
• Hs Code.: 2933998090
• European Community (EC) Number: 817-471-0
• DSSTox Substance ID: DTXSID10515837
• Wikidata: Q82376935
• Mol file: 88002-33-9.mol

Synonyms:[1,2,4]Triazolo[1,5-a]pyrazin-2-amine;88002-33-9;[1,2,4]Triazolo[1,5-a]pyrazin-2-ylamine;MFCD11847742;SCHEMBL559382;DTXSID10515837;UUYSQAYUTMLLBO-UHFFFAOYSA-N;AMY27189;AKOS006363804;CS-W007311;SB39327;DS-12258;SY117233;2-Amino-[1,2,4]triazolo[1,5-a]pyrazine;FT-0745726;EN300-196848;Z1203592078

Chemical Property of [1,2,4]Triazolo[1,5-a]pyrazin-2-amine

Chemical Property:

• Melting Point: 207-208 °C(Solv: 1-butanol (71-36-3))
• PKA: 2.63±0.30(Predicted)
• PSA: 69.83000
• Density: 1.74±0.1 g/cm3(Predicted)
• LogP: -0.36340
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C
• XLogP3: -0.7
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 135.05449518
• Heavy Atom Count: 10
• Complexity: 127

Purity/Quality:

97% ^*data from raw suppliers

[1,2,4]Triazolo[1,5-a]pyrazin-2-amine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: C1=CN2C(=NC(=N2)N)C=N1

Technology Process of [1,2,4]Triazolo[1,5-a]pyrazin-2-amine

There total 8 articles about [1,2,4]Triazolo[1,5-a]pyrazin-2-amine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.0%

ethyl[(pyrazin-2-ylamino)carbonothioyl]carbamate (56406-73-6) → [1,2,4]-triazolo[1,5-a]pyrazin-2-amine (88002-33-9)

Guidance literature:

With hydroxylamine hydrochloride; N-ethyl-N,N-diisopropylamine; In methanol; ethanol; at 65 ℃; for 16h;

Reference yield: 91.0%

2-Aminopyrazine (5049-61-6) + Ethoxycarbonyl isothiocyanate (16182-04-0) → [1,2,4]-triazolo[1,5-a]pyrazin-2-amine (88002-33-9)

Guidance literature:

2-Aminopyrazine; Ethoxycarbonyl isothiocyanate; In 1,4-dioxane; at 20 ℃; for 18h; Cooling with ice;

With hydroxylamine hydrochloride; triethylamine; In 1,4-dioxane; methanol; ethanol; at 20 ℃; for 5h; Reflux;

Reference yield: 67.0%

N-(Tetrazolyl-5')-2-pyrazinylamine (88002-29-3) → [1,2,4]-triazolo[1,5-a]pyrazin-2-amine (88002-33-9)

Guidance literature:

With PPA; at 210 ℃; for 0.833333h;

DOI:10.1007/BF01134190

upstream raw materials:

ethyl[(pyrazin-2-ylamino)carbonothioyl]carbamate

N-(Pyrazinyl-2)-N'-hydroxyguanidine

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

N-(5-Oxo-Δ²-1,2,4-oxadiazolin-3-yl)-2-pyrazinylamine

Downstream raw materials:

(2R,3R)-3-((2-(furan-2-yl)phenyl)-5,6-dihydro-[1,2,4]triazolo[1,5-a]pyrazin-7(8H)-yl)-2-(2,4-difluoro-phenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol

(2R,3R)-3-((2-(thiophen-2-yl)phenyl)-5,6-dihydro-[1,2,4]triazolo[1,5-a]pyrazin-7(8H)-yl)-2-(2,4-difluoro-phenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol

(2R,3R)-3-(2-(4-isopropylphenyl)-5,6-dihydro-[1,2,4]triazolo[1,5-a]pyrazin-7(8H)-yl)-2-(2,4-difluoro-phenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol

(2R,3R)-2-(2,4-difluorophenyl)-3-(2-(3-cyanophenyl)-5,6-dihydro[1,2,4]triazolo[1,5-a]piperazine-7(8H)-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol