Piperazine, 2-methyl-1-(phenylmethyl)-, (2S)- (9CI)

Base Information

• Chemical Name: Piperazine, 2-methyl-1-(phenylmethyl)-, (2S)- (9CI)
• CAS No.: 511254-92-5
• Molecular Formula: C12H18 N2
• Molecular Weight: 190.288
• Hs Code.: 2933599090
• Mol file: 511254-92-5.mol

Synonyms:(2S)-1-Benzyl-2-methylpiperazine

Chemical Property of Piperazine, 2-methyl-1-(phenylmethyl)-, (2S)- (9CI)

Chemical Property:

• Vapor Pressure: 0.00354mmHg at 25°C
• Boiling Point: 282℃
• PKA: 9.29±0.40(Predicted)
• Flash Point: 112℃
• PSA: 15.27000
• Density: 0.991
• LogP: 1.74700
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C

Purity/Quality:

97% ^*data from raw suppliers

(S)-1-Benzyl-2-methylpiperazine 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Piperazine, 2-methyl-1-(phenylmethyl)-, (2S)- (9CI)

There total 3 articles about Piperazine, 2-methyl-1-(phenylmethyl)-, (2S)- (9CI) 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%

tert-butyl (3S)-4-benzyl-3-methylpiperazine-1-carboxylate (716339-52-5) → (2S)-1-benzyl-2-methylpiperazine (511254-92-5)

Guidance literature:

tert-butyl (3S)-4-benzyl-3-methylpiperazine-1-carboxylate; With hydrogenchloride; In diethyl ether; dichloromethane;

DOI:10.1021/ol8002749

Reference yield:

benzyl bromide (100-39-0) → (2S)-1-benzyl-2-methylpiperazine (511254-92-5)

Guidance literature:

Multi-step reaction with 2 steps

1: potassium carbonate / acetonitrile / 2 h / Reflux

2: trifluoroacetic acid / dichloromethane / 0.5 h

With potassium carbonate; trifluoroacetic acid; In dichloromethane; acetonitrile;

Reference yield:

(S)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester (147081-29-6) → (2S)-1-benzyl-2-methylpiperazine (511254-92-5)

Guidance literature:

Multi-step reaction with 2 steps

1: potassium carbonate / acetonitrile / 2 h / Reflux

2: trifluoroacetic acid / dichloromethane / 0.5 h

With potassium carbonate; trifluoroacetic acid; In dichloromethane; acetonitrile;

upstream raw materials:

tert-butyl (3S)-4-benzyl-3-methylpiperazine-1-carboxylate

benzyl bromide

(S)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

Downstream raw materials:

(S)-tert-butyl 4-(4-benzyl-3-methylpiperazin-1-yl)-4-cyanopiperidine-1-carboxylate

(S)-tert-butyl 4-(4-benzyl-3-methylpiperazin-1-yl)-4-methylpiperidine-1-carboxylate

tert-butyl-4-methyl-4-[(3S)-3-methylpiperazin-1-yl]piperidine-1-carboxylate

(2S)-1-benzyl-4-(4-((2S)-4-benzyl-2-methylpiperazin-1-yl)-2-methylphenyl)-2-methylpiperazine

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