1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene

Base Information

• Chemical Name: 1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene
• CAS No.: 857631-66-4
• Molecular Formula: C₃₄H₄₀N₂O₂₂S₂
• Molecular Weight: 892.824

Synonyms:1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene

Chemical Property of 1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene

Chemical Property:

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Technology Process of 1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene

There total 2 articles about 1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene 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:

1,5-difluoro-2,4-dinitrobenzene (327-92-4) + 2,3,4,6-tetra-O-acetyl-1-thio-D-galactopyranose (19879-84-6,56981-51-2,72541-16-3,72748-72-2,92691-83-3,110660-22-5,50615-66-2) → 5-fluoro-2,4-dinitrophenyl 2,3,4,6-tetra-O-acetyl-1-thio-β-D-galactopyranoside (857631-65-3) + 1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene (857631-66-4)

Guidance literature:

With 2,4,6-trimethyl-pyridine; In acetonitrile; at 20 ℃; for 5h;

DOI:10.1039/b502354h

Reference yield:

2,3,4,6-tetra-O-acetylgalactopyranosyl-1-β-pseudothiourea hydrobromide (40591-65-9,51224-13-6,51898-28-3,57030-42-9,106818-92-2) → 1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene (857631-66-4)

Guidance literature:

Multi-step reaction with 2 steps

1: 820 mg / aq. sodium metabisulfite / CH₂Cl₂ / 1.5 h / 40 °C

2: 150 mg / 2,4,6-collidine / acetonitrile / 5 h / 20 °C

With 2,4,6-trimethyl-pyridine; sodium disulfite; In dichloromethane; acetonitrile;

DOI:10.1039/b502354h

Reference yield: 100.0%

1,5-bis-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosylthio)-2,4-dinitrobenzene (857631-66-4) → 1,5-bis(β-D-galactopyranosylthio)-2,4-dinitrobenzene

Guidance literature:

With sodium methylate; In methanol; at 20 ℃; for 1.5h;

DOI:10.1039/b502354h

upstream raw materials:

1,5-difluoro-2,4-dinitrobenzene

2,3,4,6-tetra-O-acetyl-1-thio-D-galactopyranose

2,3,4,6-tetra-O-acetylgalactopyranosyl-1-β-pseudothiourea hydrobromide

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