ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

Base Information

Chemical Name:ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside
CAS No.:250740-57-9
Molecular Formula:C₂₉H₃₈O₁₃S
Molecular Weight:626.679
Hs Code.:

Synonyms:ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

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Chemical Property of ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

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Technology Process of ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

There total 3 articles about ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-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: 76.0%

: 250740-56-8
3,4-di-O-acetyl-β-L-rhamnopyranose 1,2-(ethyl 2-O-acetyl-4,6-O-benzylidene-1-thio-β-D-glucopyranose-3-yl) orthoacetate

: 250740-57-9
ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

Guidance literature:: With trifluorormethanesulfonic acid; In 1,2-dichloro-ethane; for 6h;
DOI:10.1002/(sici)1099-0690(199910)1999:10<2623::aid-ejoc2623>3.0.co;2-k

Reference yield:

: 113893-72-4
2,3,4-tri-O-acetyl-L-rhamnopyranosyl trichloroacetimidate

: 250740-57-9
ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

Guidance literature:: Multi-step reaction with 3 steps

1: 81 percent / trimethylsilyl trifluoromethanesulfonate / CH₂Cl₂; tetrahydrofuran / 0.5 h / -40 °C

2: 87 percent / pyridine / 12 h

3: 76 percent / trifluoromethanesulfonic acid / 1,2-dichloro-ethane / 6 h

With pyridine; trifluorormethanesulfonic acid; trimethylsilyl trifluoromethanesulfonate; In tetrahydrofuran; dichloromethane; 1,2-dichloro-ethane; 1: Etherification / 2: Acetylation / 3: Ring cleavage;
DOI:10.1002/(sici)1099-0690(199910)1999:10<2623::aid-ejoc2623>3.0.co;2-k

Reference yield:

: 250740-54-6
3,4-di-O-acetyl-β-L-rhamnopyranose 1,2-(ethyl 4,6-O-benzylidene-1-thio-β-D-glucopyranose-3-yl) orthoacetate

: 250740-57-9
ethyl 2-O-acetyl-4,6-O-benzylidene-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-1-thio-β-D-glucopyranoside

Guidance literature:: Multi-step reaction with 2 steps

1: 87 percent / pyridine / 12 h

2: 76 percent / trifluoromethanesulfonic acid / 1,2-dichloro-ethane / 6 h

With pyridine; trifluorormethanesulfonic acid; In 1,2-dichloro-ethane; 1: Acetylation / 2: Ring cleavage;
DOI:10.1002/(sici)1099-0690(199910)1999:10<2623::aid-ejoc2623>3.0.co;2-k