4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

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Chemical Name:4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester
CAS No.:719287-30-6
Molecular Formula:C₁₈H₂₃ClN₄O₄
Molecular Weight:394.858
Hs Code.:

Synonyms:4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

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Chemical Property of 4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

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Technology Process of 4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

There total 6 articles about 4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester 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:

: 719288-18-3
4-[3-(2,4-bis-benzyloxy-5-chloro-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

: 719287-30-6
4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

Guidance literature:: With hydrogen; palladium 10% on activated carbon; In ethyl acetate; for 1.5h;

Reference yield:

: 705963-54-8
1-[2,4-bis(benzyloxy)-5-chlorophenyl]ethan-1-one

: 719287-30-6
4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: phenyl-trimethyl-ammonium perbromide / tetrahydrofuran / 2 h

2.1: caesium carbonate / DMF (N,N-dimethyl-formamide) / 2 h

3.1: N,N-dimethyl-formamide dimethyl acetal / 3 h / Heating / reflux

3.2: 4 h / Heating / reflux

3.3: 0.08 h / 120 °C / Microwave

4.1: hydrogen / palladium 10% on activated carbon / ethyl acetate / 1.5 h

With phenyl-trimethyl-ammonium perbromide; hydrogen; caesium carbonate; palladium 10% on activated carbon; In tetrahydrofuran; DMF (N,N-dimethyl-formamide); N,N-dimethyl-formamide dimethyl acetal; ethyl acetate;

Reference yield:

: 95-88-5
4-Chlororesorcinol

: 719287-30-6
4-[3-(5-chloro-2,4-dihydroxy-phenyl)-1H-pyrazol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 6 steps

1.1: boron trifluoride diethyl etherate / 3.5 h / 90 °C

1.2: 1 h / 20 °C

2.1: potassium carbonate / acetonitrile / 6 h / Heating / reflux

2.2: 12 h / 20 °C

3.1: phenyl-trimethyl-ammonium perbromide / tetrahydrofuran / 2 h

4.1: caesium carbonate / DMF (N,N-dimethyl-formamide) / 2 h

5.1: N,N-dimethyl-formamide dimethyl acetal / 3 h / Heating / reflux

5.2: 4 h / Heating / reflux

5.3: 0.08 h / 120 °C / Microwave

6.1: hydrogen / palladium 10% on activated carbon / ethyl acetate / 1.5 h

With phenyl-trimethyl-ammonium perbromide; boron trifluoride diethyl etherate; hydrogen; potassium carbonate; caesium carbonate; palladium 10% on activated carbon; In tetrahydrofuran; DMF (N,N-dimethyl-formamide); N,N-dimethyl-formamide dimethyl acetal; ethyl acetate; acetonitrile;