4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

Base Information

Chemical Name:4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester
CAS No.:1382136-28-8
Molecular Formula:C₂₄H₂₈ClN₃O₄
Molecular Weight:457.957
Hs Code.:

Synonyms:4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

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Chemical Property of 4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

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Technology Process of 4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

There total 1 articles about 4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-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: 96.0%

: 393860-82-7
3,5-dichloro-1-(4-methoxybenzyl)pyrazin-2(1H)-one

: 287192-97-6
4-ethynyl-piperidine-1-carboxylic acid tert-butyl ester

: 1382136-28-8
4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

Guidance literature:: With copper(l) iodide; triethylamine; bis-triphenylphosphine-palladium(II) chloride; In N,N-dimethyl-formamide; at 80 ℃; for 0.25h; Inert atmosphere; Microwave irradiation;

Reference yield:

: 1382136-28-8
4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

: 1382133-26-7
4-[2-(4-Methanesulfonyl-phenyl)-6,7-dihydro-furo[2,3-b]pyrazin-6-yl]-piperidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: trifluoroacetic acid; silver trifluoromethanesulfonate / dichloromethane / 0.33 h / 20 °C

2: sodium carbonate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / N,N-dimethyl-formamide / 1.5 h / 100 °C / Inert atmosphere

3: hydrogen; acetic acid / palladium 10% on activated carbon / methanol / 20 °C / 2625.26 Torr

With hydrogen; silver trifluoromethanesulfonate; sodium carbonate; acetic acid; trifluoroacetic acid; tetrakis(triphenylphosphine) palladium⁽⁰⁾; palladium 10% on activated carbon; In methanol; dichloromethane; N,N-dimethyl-formamide;

Reference yield:

: 1382136-28-8
4-[6-chloro-4-(4-methoxy-benzyl)-3-oxo-3,4-dihydro-pyrazin-2-ylethynyl]-piperidine-1-carboxylic acid tert-butyl ester

: 1382136-32-4
4-[2-(4-methanesulfonyl-phenyl)-furo[2,3-b]pyrazin-6-yl]-piperidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: trifluoroacetic acid; silver trifluoromethanesulfonate / dichloromethane / 0.33 h / 20 °C

2: sodium carbonate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / N,N-dimethyl-formamide / 1.5 h / 100 °C / Inert atmosphere

With silver trifluoromethanesulfonate; sodium carbonate; trifluoroacetic acid; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In dichloromethane; N,N-dimethyl-formamide;