1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde

Base Information

• Chemical Name: 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde
• CAS No.: 888739-63-7
• Molecular Formula: C₁₅H₁₄ClF₃N₂O
• Molecular Weight: 330.737
• Mol file: 888739-63-7.mol

Synonyms:1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde

Chemical Property of 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde

There total 5 articles about 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-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: 99.0%

{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}methanol (888739-62-6) → 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde (888739-63-7)

Guidance literature:

{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}methanol; With oxalyl dichloride; dimethyl sulfoxide; In dichloromethane; at -78 ℃; for 1.08333h;

With triethylamine; In dichloromethane; at 0 - 30 ℃; for 1h;

Reference yield: 99.0%

{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}methanol (888739-62-6) + oxalyl dichloride (79-37-8) → 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde (888739-63-7)

Guidance literature:

With dimethyl sulfoxide; triethylamine; In dichloromethane;

Reference yield:

3-methyl-butan-2-one (563-80-4) → 1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazole-5-carbaldehyde (888739-63-7)

Guidance literature:

Multi-step reaction with 5 steps

1.1: potassium tert-butylate / tetrahydrofuran / 16 h / 20 °C

2.1: hydrazine hydrate; acetic acid / tetrahydrofuran / 2 h / Reflux

3.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C

4.1: diisobutylaluminium hydride / tetrahydrofuran; toluene / 20 °C / Cooling with ice

5.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / -78 °C

5.2: -78 - 20 °C

With oxalyl dichloride; potassium tert-butylate; diisobutylaluminium hydride; potassium carbonate; hydrazine hydrate; acetic acid; dimethyl sulfoxide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; toluene; 1.1: Claisen condensation / 5.1: Swern oxidation / 5.2: Swern oxidation;

DOI:10.1016/j.bmc.2011.12.008

upstream raw materials:

{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}methanol

oxalyl dichloride

3-methyl-butan-2-one

ethyl 3-isopropyl-1H-pyrazole-5-carboxylate

Downstream raw materials:

ethyl 3-{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}propanoate

3-{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}-N-(pentylsulfonyl)propanamide

ethyl (E)-3-{1-[2-chloro-4-(trifluoromethyl)benzyl]-3-isopropyl-1H-pyrazol-5-yl}propenoate