Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

Base Information

Chemical Name:Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside
CAS No.:345320-63-0
Molecular Formula:C₅₂H₅₈O₁₅S
Molecular Weight:955.09
Hs Code.:

Synonyms:Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

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Chemical Property of Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

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Technology Process of Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

There total 7 articles about Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-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: 66.0%

: 98-59-9
p-toluenesulfonyl chloride

: 345320-61-8
Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-β-D-galactopyranoside

: 345320-63-0
Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

Guidance literature:: With pyridine; at 20 ℃; for 48h;
DOI:10.1039/b009685g

Reference yield:

: 34820-01-4,6344-46-3
methyl 2,3,6-tri-O-benzoyl-β-D-galactopyranoside

: 345320-63-0
Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

Guidance literature:: Multi-step reaction with 6 steps

1: 95 percent / NIS; AgOTf; molecular sieves 4 Angstroem / CH₂Cl₂

2: 97 percent / NaOMe / methanol / 5 h / Heating

3: pyridine / 3 h

4: pyridine / 48 h

5: aq. AcOH / 1 h / 60 °C

6: 66 percent / pyridine / 48 h / 20 °C

With pyridine; N-iodo-succinimide; 4 A molecular sieve; sodium methylate; silver trifluoromethanesulfonate; acetic acid; In methanol; dichloromethane;
DOI:10.1039/b009685g

Reference yield:

: 125411-99-6
ethyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-galactopyranoside

: 345320-63-0
Methyl 2,3-di-O-acetyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-6-O-(p-tolylsulfonyl)-β-D-galactopyranoside

Guidance literature:: Multi-step reaction with 6 steps

1: 95 percent / NIS; AgOTf; molecular sieves 4 Angstroem / CH₂Cl₂

2: 97 percent / NaOMe / methanol / 5 h / Heating

3: pyridine / 3 h

4: pyridine / 48 h

5: aq. AcOH / 1 h / 60 °C

6: 66 percent / pyridine / 48 h / 20 °C

With pyridine; N-iodo-succinimide; 4 A molecular sieve; sodium methylate; silver trifluoromethanesulfonate; acetic acid; In methanol; dichloromethane;
DOI:10.1039/b009685g