allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside

Base Information

• Chemical Name: allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside
• CAS No.: 685104-18-1
• Molecular Formula: C₅₀H₄₆O₁₅
• Molecular Weight: 886.906
• Mol file: 685104-18-1.mol

Synonyms:allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside

Chemical Property of allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside

There total 5 articles about allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-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: 83.0%

allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-α-D-glucopyranoside (685104-39-6) → allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside (685104-18-1)

Guidance literature:

With pyridine; hydrogen fluoride; at 20 ℃;

DOI:10.1002/ejoc.200300580

Reference yield:

allyl 4,6-O-benzylidene-α-D-glucopyranoside (93382-48-0) → allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside (685104-18-1)

Guidance literature:

Multi-step reaction with 5 steps

1: 58 percent / pyridine / 0 °C

2: 99 percent / imidazole; DMAP / dimethylformamide

3: 98 percent / DIBAL-H / CH₂Cl₂ / -78 °C

4: 97 percent / molecular sieves 4 Angstroem; NIS; AgOTf / CH₂Cl₂; toluene / -15 - 20 °C

5: 83 percent / HF; pyridine / 20 °C

With pyridine; 1H-imidazole; dmap; N-iodo-succinimide; 4 A molecular sieve; hydrogen fluoride; silver trifluoromethanesulfonate; diisobutylaluminium hydride; In dichloromethane; N,N-dimethyl-formamide; toluene;

DOI:10.1002/ejoc.200300580

Reference yield:

ethyl 2,3,4,6-tetra-O-benzoyl-1-thio-α-D-galactopyranoside → allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-α-D-glucopyranoside (685104-18-1)

Guidance literature:

Multi-step reaction with 2 steps

1: 97 percent / molecular sieves 4 Angstroem; NIS; AgOTf / CH₂Cl₂; toluene / -15 - 20 °C

2: 83 percent / HF; pyridine / 20 °C

With pyridine; N-iodo-succinimide; 4 A molecular sieve; hydrogen fluoride; silver trifluoromethanesulfonate; In dichloromethane; toluene;

DOI:10.1002/ejoc.200300580

upstream raw materials:

allyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->2)-4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-α-D-glucopyranoside

allyl 4,6-O-benzylidene-α-D-glucopyranoside

allyl 4,6-O-benzylidene-2-O-pivaloyl-α-D-glucopyranoside

allyl 4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-α-D-glucopyranoside

Downstream raw materials:

allyl 4,6-O-benzylidene-2-O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-3-O-(2,3,4-tri-O-acetyl-β-D-xylopyranosyl)-α-D-glucopyranoside

allyl 4-O-acetyl-6-O-triphenylmethyl-2-O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-3-O-(2,3,4-tri-O-acetyl-β-D-xylopyranosyl)-α-D-glucopyranoside

C₇₃H₇₀O₂₂

tert-butyl [allyl 4-O-acetyl-2-O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-3-O-(2,3,4-tri-O-acetyl-β-D-xylopyranosyl)-α-D-glucopyranoside]uronate