2-(4-CHLOROPHENYL)PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER

Base Information

• Chemical Name: 2-(4-CHLOROPHENYL)PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER
• CAS No.: 769944-39-0
• Molecular Formula: C15H21 Cl N2 O2
• Molecular Weight: 296.797
• Hs Code.: 2933599090
• Mol file: 769944-39-0.mol

Synonyms:4-(tert-Butoxycarbonyl)-3-(4-chlorophenyl)piperazine

Chemical Property of 2-(4-CHLOROPHENYL)PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER

Chemical Property:

• Vapor Pressure: 1.2E-06mmHg at 25°C
• Refractive Index: 1.531
• Boiling Point: 401.2°C at 760 mmHg
• Flash Point: 196.4°C
• PSA: 41.57000
• Density: 1.155g/cm³
• LogP: 3.48810
• Storage Temp.: 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

2-(4-Chlorophenyl)piperazine-1-carboxylicAcidtert-ButylEster ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-(4-CHLOROPHENYL)PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER

There total 4 articles about 2-(4-CHLOROPHENYL)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: 69.0%

4-(tert-butoxycarbonyl)-3-(4-chlorophenyl)-piperazin-2-one (769944-38-9) → 4-(tert-butoxycarbonyl)-3-(4-chlorophenyl)piperazine (769944-39-0)

Guidance literature:

With sodium tetrahydroborate; acetic acid; In 1,4-dioxane; Heating / reflux;

Reference yield:

(4-chloro-phenyl)-acetic acid methyl ester (52449-43-1) → 4-(tert-butoxycarbonyl)-3-(4-chlorophenyl)piperazine (769944-39-0)

Guidance literature:

Multi-step reaction with 4 steps

1: N-Bromosuccinimide / tetrachloromethane / UV-irradiation

2: triethylamine / methanol / Reflux

3: triethylamine / dichloromethane

4: sodium tetrahydroborate; acetic acid / 1,4-dioxane / Heating

With sodium tetrahydroborate; N-Bromosuccinimide; acetic acid; triethylamine; In 1,4-dioxane; methanol; tetrachloromethane; dichloromethane;

DOI:10.1016/j.bmcl.2017.06.078

Reference yield:

methyl 2-bromo-2-(4-chlorophenyl)acetate (24091-92-7) → 4-(tert-butoxycarbonyl)-3-(4-chlorophenyl)piperazine (769944-39-0)

Guidance literature:

Multi-step reaction with 3 steps

1: triethylamine / methanol / Reflux

2: triethylamine / dichloromethane

3: sodium tetrahydroborate; acetic acid / 1,4-dioxane / Heating

With sodium tetrahydroborate; acetic acid; triethylamine; In 1,4-dioxane; methanol; dichloromethane;

DOI:10.1016/j.bmcl.2017.06.078

upstream raw materials:

4-(tert-butoxycarbonyl)-3-(4-chlorophenyl)-piperazin-2-one

(4-chloro-phenyl)-acetic acid methyl ester

methyl 2-bromo-2-(4-chlorophenyl)acetate

3-(4-chloro-phenyl)-piperazin-2-one

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