benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside

Base Information

• Chemical Name: benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside
• CAS No.: 81251-16-3
• Molecular Formula: C₄₂H₄₃NO₁₆
• Molecular Weight: 817.801
• Mol file: 81251-16-3.mol

Synonyms:benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside

Chemical Property of benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside

There total 1 articles about benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside 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: 73.0%

1-bromo-2,3,4,6-tetra-O-acetyl-D-galactopyranose (3068-32-4) + benzyl 4,6-O-benzylidene-2-deoxy-2-phthalimido-β-D-glucopyranoside (149342-15-4) → benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside (81251-16-3) + 3,4,5,7-tetra-O-acetyl-2,6-anhydro-D-glycero-L-manno-heptonitrile (52443-07-9)

Guidance literature:

With mercury(II) cyanide; In nitromethane; benzene; at 60 ℃; for 52h;

DOI:10.1139/v82-010

Reference yield:

benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside (81251-16-3) → Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-2-[(2R,3R,4R,5S,6R)-2-benzyloxy-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-5-hydroxy-6-hydroxymethyl-tetrahydro-pyran-4-yloxy]-tetrahydro-pyran-3-yl ester (81243-78-9)

Guidance literature:

With acetic acid; at 100 ℃; for 0.5h;

DOI:10.1139/v82-010

Reference yield:

benzyl 3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-4,6-O-benzylidine-2-deoxy-2-phthalimido-β-D-glucopyranoside (81251-16-3) → benzyl 4,6-di-O-acetyl-3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-2-deoxy-2-phthalimido-β-D-glucopyranoside (81243-77-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 60percent aq. acetic acid / 0.5 h / 100 °C

2: pyridine

With acetic acid; In pyridine;

DOI:10.1139/v82-010

upstream raw materials:

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

benzyl 4,6-O-benzylidene-2-deoxy-2-phthalimido-β-D-glucopyranoside

Downstream raw materials:

Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-2-[(2R,3R,4R,5S,6R)-2-benzyloxy-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-5-hydroxy-6-hydroxymethyl-tetrahydro-pyran-4-yloxy]-tetrahydro-pyran-3-yl ester

benzyl 4,6-di-O-acetyl-3-O-(tetra-O-acetyl-β-D-galactopyranosyl)-2-deoxy-2-phthalimido-β-D-glucopyranoside