ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

Base Information

Chemical Name:ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside
CAS No.:213743-10-3
Molecular Formula:C₂₅H₂₈O₇S
Molecular Weight:472.559
Hs Code.:

Synonyms:ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

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Chemical Property of ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

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Technology Process of ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

There total 5 articles about ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-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: 76.0%

: 98-88-4
benzoyl chloride

: 67-64-1
acetone

: 56245-60-4,686299-00-3
ethyl 1-thio-β-D-galactopyranoside

: 210093-48-4
ethyl 2,6-di-O-benzoyl-3,4-O-isopropylidene-1-thio-β-D-galactopyranoside

: 213743-10-3
ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

Guidance literature:: acetone; ethyl 1-thio-β-D-galactopyranoside; With toluene-4-sulfonic acid; at 20 ℃; for 2h;

benzoyl chloride; In pyridine; at 20 ℃; for 3h;
DOI:10.1080/07328300008544063

Reference yield:

: 56245-60-4,686299-00-3
ethyl 1-thio-β-D-galactopyranoside

: 213743-10-3
ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

Guidance literature:: Multi-step reaction with 2 steps

1: TsOH / dimethylformamide / 1.5 h

2: pyridine / 3.5 h / Ambient temperature

With pyridine; toluene-4-sulfonic acid; In N,N-dimethyl-formamide;
DOI:10.1039/a801429i

Reference yield:

: 4163-60-4
β-D-galactose peracetate

: 213743-10-3
ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside

Guidance literature:: Multi-step reaction with 4 steps

1: 80 percent / 4 Angstroem molecular sieves, SnCl₄ / 1,2-dichloro-ethane / 1.) -30 deg C, 1 h, 2.) -30 to -17 deg C, 1 h

2: NaOMe / methanol / 17 h / Ambient temperature

3: TsOH / dimethylformamide / 1.5 h

4: pyridine / 3.5 h / Ambient temperature

With pyridine; 4 A molecular sieve; sodium methylate; tin(IV) chloride; toluene-4-sulfonic acid; In methanol; 1,2-dichloro-ethane; N,N-dimethyl-formamide;
DOI:10.1039/a801429i