1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde

Base Information

• Chemical Name: 1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde
• CAS No.: 701911-46-8
• Molecular Formula: C8H12N2O
• Molecular Weight: 152.196
• Hs Code.: 2933199090
• European Community (EC) Number: 812-002-6
• DSSTox Substance ID: DTXSID40390119
• Nikkaji Number: J2.040.371C
• Wikidata: Q72474588
• Mol file: 701911-46-8.mol

Synonyms:1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde;701911-46-8;1-ethyl-3,5-dimethylpyrazole-4-carbaldehyde;1H-Pyrazole-4-carboxaldehyde, 1-ethyl-3,5-diMethyl- (9CI);MFCD02253752;SCHEMBL3322655;DTXSID40390119;NDKOKWXOWTVYJR-UHFFFAOYSA-N;AMY33043;STK315883;AKOS000303067;CS-W010950;AS-67397;BP-10568;SY017762;A9270;BB 0219273;FT-0687733;EN300-65738;W17393;1-ethyl-3,5-dimethyl-1h-pyrazole-4-carboxaldehyde;3,5-dimethyl-1-ethyl-1h-pyrazole-4-carboxaldehyde;Z444877434;1-Ethyl-3,5-Dimethyl-1H-pyrazole-4-carbaldehyde, AldrichCPR

Chemical Property of 1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde

Chemical Property:

• Vapor Pressure: 0.0167mmHg at 25°C
• Refractive Index: 1.5176 (589.3 nm 20℃)
• Boiling Point: 255 °C at 760 mmHg
• Flash Point: 108 °C
• PSA: 34.89000
• Density: 1.06 g/cm³
• LogP: 1.33230
• XLogP3: 0.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 2
• Exact Mass: 152.094963011
• Heavy Atom Count: 11
• Complexity: 149

Purity/Quality:

97% ^*data from raw suppliers

1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 22

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCN1C(=C(C(=N1)C)C=O)C

Technology Process of 1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde

There total 4 articles about 1-Ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde 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: 65.0%

1-ethyl-3,5-dimethylpyrazole (17629-26-4) + N,N-dimethyl-formamide (68-12-2,33513-42-7) → 1-ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (701911-46-8)

Guidance literature:

With trichlorophosphate; at 90 - 120 ℃; for 1h;

DOI:10.1134/S1070363206110260

Reference yield:

[chloro-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-methyl]-dimethyl-amine → 1-ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (701911-46-8)

Guidance literature:

With water; In N,N-dimethyl-formamide;

DOI:10.1134/S1070428006040117

Reference yield:

3,5-dimethyl-1H-pyrazole (67-51-6) → 1-ethyl-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (701911-46-8)

Guidance literature:

Multi-step reaction with 3 steps

1.1: potassium hydroxide / dimethylsulfoxide / 80 °C

1.2: 89 percent / dimethylsulfoxide / 20 °C

2.1: phosphoryl chloride / 6.5 h / 100 °C

3.1: water / dimethylformamide

With potassium hydroxide; water; trichlorophosphate; In dimethyl sulfoxide; N,N-dimethyl-formamide; 2.1: Vilsmeier reaction;

DOI:10.1134/S1070428006040117

upstream raw materials:

1-ethyl-3,5-dimethylpyrazole

N,N-dimethyl-formamide

3,5-dimethyl-1H-pyrazole

Downstream raw materials:

6-[2-(3-chloro-4-isopropoxyphenyl)ethyl]-6-cyclopentyl-3-[(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)methyl]-4-hydroxy-5,6-dihydro-2H-pyran-2-one

C₈H₁₃N₃O

1-ethyl-3,5-dimethylpyrazole-4-carboxylic acid

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