(R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol

Base Information

• Chemical Name: (R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol
• CAS No.: 445483-95-4
• Molecular Formula: C₁₆H₂₂N₂O₃
• Molecular Weight: 290.362
• Mol file: 445483-95-4.mol

Synonyms:(R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol

Chemical Property of (R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol

There total 1 articles about (R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol 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: 78.0%

(2R)-2,5-dihydro-2-isopropyl-3,6-dimethoxypyrazine (109838-85-9) + benzaldehyde (100-52-7) → (R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol (445483-95-4)

Guidance literature:

(2R)-2,5-dihydro-2-isopropyl-3,6-dimethoxypyrazine; With n-butyllithium; In tetrahydrofuran; at -78 ℃;

With ClTi(NEt₂); In tetrahydrofuran; hexane;

benzaldehyde; In tetrahydrofuran; hexane;

DOI:10.1016/S0040-4039(02)00607-X

Reference yield: 51.0%

trimethoxonium tetrafluoroborate (420-37-1) + (R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol (445483-95-4) → (2R,5S)-2-Isopropyl-3,6-dimethoxy-5-((R)-methoxy-phenyl-methyl)-2,5-dihydro-pyrazine (445483-96-5)

Guidance literature:

With Proton Sponge; In dichloromethane; at 4 ℃;

DOI:10.1016/S0040-4039(02)00607-X

Reference yield:

(R)-((2S,5R)-5-Isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazin-2-yl)-phenyl-methanol (445483-95-4) → threo-β-methoxyphenylalanine

Guidance literature:

Multi-step reaction with 3 steps

1: 51 percent / proton sponge / CH₂Cl₂ / 4 °C

2: aq. TFA / acetonitrile; tetrahydrofuran

3: Et₃N / tetrahydrofuran

With Proton Sponge; triethylamine; trifluoroacetic acid; In tetrahydrofuran; dichloromethane; acetonitrile;

DOI:10.1016/S0040-4039(02)00607-X

upstream raw materials:

(2R)-2,5-dihydro-2-isopropyl-3,6-dimethoxypyrazine

benzaldehyde

Downstream raw materials:

(2R,5S)-2-Isopropyl-3,6-dimethoxy-5-((R)-methoxy-phenyl-methyl)-2,5-dihydro-pyrazine

(2S,3R)-2-Amino-3-methoxy-3-phenyl-propionic acid methyl ester