2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

Base Information

Chemical Name:2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside
CAS No.:348145-60-8
Molecular Formula:C₃₁H₄₀BrNO₁₅
Molecular Weight:746.56
Hs Code.:

Synonyms:2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

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Chemical Property of 2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

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Technology Process of 2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

There total 4 articles about 2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside 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: 50.0%

: 348145-58-4
2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranoside

: 3068-32-4
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside

: 348145-60-8
2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

Guidance literature:: With 4 A molecular sieve; silver trifluoromethanesulfonate; In dichloromethane; toluene; at -25 ℃; for 1h;
DOI:10.1039/b009567m

Reference yield:

: 72-87-7,1136-42-1,1136-44-3,6730-06-9,7772-94-3,10036-64-3,14131-60-3,14131-64-7,14131-68-1,14215-68-0,62057-49-2,62057-50-5,62057-51-6,62057-52-7,62057-53-8,62057-54-9,62057-55-0,62057-56-1,62075-50-7,62137-54-6,134451-97-1,134522-12-6,148347-16-4,6082-29-7
N-acetyl-D-galactosamine

: 348145-60-8
2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

Guidance literature:: Multi-step reaction with 3 steps

1: 52 percent / HCl / 5 h / 55 - 60 °C

2: 98 percent / p-TsOH / acetonitrile / 24 h / 20 °C

3: 50 percent / AgOTf; molecular sieves 4 Angstroem / toluene; CH₂Cl₂ / 1 h / -25 °C

With hydrogenchloride; 4 A molecular sieve; silver trifluoromethanesulfonate; toluene-4-sulfonic acid; In dichloromethane; toluene; acetonitrile;
DOI:10.1039/b009567m

Reference yield:

: 25878-60-8
D-galactose pentaacetate

: 348145-60-8
2-Bromoethyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside

Guidance literature:: Multi-step reaction with 2 steps

1: HBr / acetic acid; acetic anhydride / 0 °C

2: 50 percent / AgOTf; molecular sieves 4 Angstroem / toluene; CH₂Cl₂ / 1 h / -25 °C

With 4 A molecular sieve; hydrogen bromide; silver trifluoromethanesulfonate; In dichloromethane; acetic anhydride; acetic acid; toluene;
DOI:10.1039/b009567m