ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

Base Information

Chemical Name:ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate
CAS No.:888738-95-2
Molecular Formula:C₁₈H₂₀Cl₂N₂O₂
Molecular Weight:367.275
Hs Code.:

Synonyms:ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

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Technology Process of ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

There total 7 articles about ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate 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%

: 867-13-0
diethoxyphosphoryl-acetic acid ethyl ester

: 888738-94-1
1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazole-5-carbaldehyde

: 888738-95-2
ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

Guidance literature:: diethoxyphosphoryl-acetic acid ethyl ester; With sodium hydride; In N,N-dimethyl-formamide; at 20 ℃; Cooling with ice;

1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazole-5-carbaldehyde; In tetrahydrofuran; N,N-dimethyl-formamide; at 20 ℃; Cooling;
DOI:10.1016/j.bmc.2011.12.008

Reference yield: 81.0%

: 888738-94-1
1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazole-5-carbaldehyde

: triethyl phosphonoacetic acid

: 888738-95-2
ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

Guidance literature:: In tetrahydrofuran; water; N,N-dimethyl-formamide;

Reference yield:

: 78208-72-7
ethyl 3-isopropyl-1H-pyrazole-5-carboxylate

: 888738-95-2
ethyl (E)-3-[1-(2,4-dichlorobenzyl)-3-isopropyl-1H-pyrazol-5-yl]propenoate

Guidance literature:: Multi-step reaction with 4 steps

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

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

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

3.2: -78 - 20 °C

4.1: sodium hydride / N,N-dimethyl-formamide / 20 °C / Cooling with ice

4.2: 20 °C / Cooling

With oxalyl dichloride; sodium hydride; diisobutylaluminium hydride; potassium carbonate; dimethyl sulfoxide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; toluene; 3.1: Swern oxidation / 3.2: Swern oxidation / 4.2: Horner-Wadsworth-Emmons reaction;
DOI:10.1016/j.bmc.2011.12.008