4-Ethynyl-1,3-dimethyl-1H-pyrazole

Base Information

• Chemical Name: 4-Ethynyl-1,3-dimethyl-1H-pyrazole
• CAS No.: 61514-53-2
• Molecular Formula: C7H8N2
• Molecular Weight: 120.154
• European Community (EC) Number: 839-141-5
• DSSTox Substance ID: DTXSID50486012
• Wikidata: Q82325887
• Mol file: 61514-53-2.mol

Synonyms:4-Ethynyl-1,3-dimethyl-1H-pyrazole;61514-53-2;4-ethynyl-1,3-dimethylpyrazole;1H-Pyrazole, 4-ethynyl-1,3-dimethyl-;4-ethynyl-1,3-dimethyl-1{H}-pyrazole;LCZC2634;SCHEMBL16630476;DEQRCEZDXARLDX-UHFFFAOYSA-;DTXSID50486012;MFCD24540411;AKOS015921186;CS-0241443;E84350;EN300-232829;4-(1-ETHYNYL)-1,3-DIMETHYL-1H-PYRAZOLE;InChI=1/C7H8N2/c1-4-7-5-9(3)8-6(7)2/h1,5H,2-3H3

Chemical Property of 4-Ethynyl-1,3-dimethyl-1H-pyrazole

Chemical Property:

• PSA: 17.82000
• LogP: 0.70980
• XLogP3: 0.9
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 1
• Exact Mass: 120.068748264
• Heavy Atom Count: 9
• Complexity: 144

Purity/Quality:

97% ^*data from raw suppliers

4-ethynyl-1,3-dimethyl-1{H}-pyrazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=NN(C=C1C#C)C

Technology Process of 4-Ethynyl-1,3-dimethyl-1H-pyrazole

There total 2 articles about 4-Ethynyl-1,3-dimethyl-1H-pyrazole 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:

dimethyl 1-(1-diazo-2-oxopropyl)phosphonate (90965-06-3) + 1,3-dimethyl-1H-pyrazole-4-carbaldehyde (25016-12-0) → 4-ethynyl-1,3-dimethyl-1H-pyrazole (61514-53-2)

Guidance literature:

With caesium carbonate; In methanol; at 0 - 5 ℃;

Reference yield:

→ 4-ethynyl-1,3-dimethyl-1H-pyrazole (61514-53-2)

Guidance literature:

Acetylpyrazol Ib, PCl5 1), NaNH2 2);

DOI:10.1007/BF02659533

Reference yield: 21.0%

C24H19ClN6O (1466565-04-7) + 4-ethynyl-1,3-dimethyl-1H-pyrazole (61514-53-2) → C31H26N8O

Guidance literature:

With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; copper(l) iodide; caesium carbonate; XPhos; In 1,4-dioxane; at 100 ℃; for 8h; Inert atmosphere;

upstream raw materials:

dimethyl 1-(1-diazo-2-oxopropyl)phosphonate

1,3-dimethyl-1H-pyrazole-4-carbaldehyde