(2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

Base Information

• Chemical Name: (2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester
• CAS No.: 219657-73-5
• Molecular Formula: C₂₁H₃₀N₂O₄
• Molecular Weight: 374.48
• Mol file: 219657-73-5.mol

Synonyms:(2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

Chemical Property of (2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

There total 1 articles about (2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl 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: 84.0%

benzyl bromide (100-39-0) + 2,5-Bisethoxy-3-ethoxycarbonyl-6-isopropyl-3,6-dihydropyrazin (219657-71-3) → (2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester (219657-73-5)

Guidance literature:

With n-butyllithium; In tetrahydrofuran; at 0 ℃; for 0.666667h;

DOI:10.1016/S0957-4166(98)00370-X

Reference yield: 84.0%

(2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester (219657-73-5) → ((2S,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazin-2-yl)-methanol (219657-77-9)

Guidance literature:

With diisobutylaluminium hydride; In dichloromethane; at 0 - 20 ℃;

DOI:10.1016/S0957-4166(98)00370-X

Reference yield:

(2R,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester (219657-73-5) → (S)-2-Amino-2-hydroxymethyl-3-phenyl-propionic acid ethyl ester

Guidance literature:

Multi-step reaction with 2 steps

1: 84 percent / DIBAL / CH₂Cl₂ / 0 - 20 °C

2: 58 percent / 0.2 N aq. HCl / acetonitrile / Ambient temperature

With hydrogenchloride; diisobutylaluminium hydride; In dichloromethane; acetonitrile;

DOI:10.1016/S0957-4166(98)00370-X

upstream raw materials:

benzyl bromide

2,5-Bisethoxy-3-ethoxycarbonyl-6-isopropyl-3,6-dihydropyrazin

Downstream raw materials:

((2S,5S)-2-Benzyl-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazin-2-yl)-methanol