(S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

Base Information

Chemical Name:(S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride
CAS No.:138857-93-9
Molecular Formula:C₂₄H₂₃ClO₉
Molecular Weight:490.894
Hs Code.:

Synonyms:(S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

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Chemical Property of (S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

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Technology Process of (S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

There total 3 articles about (S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride 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: 70.0%

: 138857-86-0
(2S,4aR,6R,7R,8S,8aS)-6,7,8-Tris-benzoyloxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxine-2-carboxylic acid methyl ester

: 138857-93-9
(S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

Guidance literature:: With Dichloromethyl methyl ether; zinc(II) chloride; In chloroform; at 60 ℃; for 1h;

Reference yield:

: 3253-22-3
1,2,3-tri-O-benzoyl-α-D-galactopyranoside

: 138857-93-9
(S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

Guidance literature:: Multi-step reaction with 2 steps

1: 29 percent / NOBF₄ / CH₂Cl₂ / 4 h / -25 °C

2: 70 percent / Cl₂CHOMe / ZnCl₂ / CHCl₃ / 1 h / 60 °C

With Dichloromethyl methyl ether; nitrosonium tetrafluoroborate; zinc(II) chloride; In dichloromethane; chloroform;

Reference yield:

: 4137-35-3
methyl 2,3-bis-O-benzoyl-α-D-galactopyranoside

: 138857-93-9
(S)-2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-α-D-galactopyranosyl chloride

Guidance literature:: Multi-step reaction with 2 steps

1: 79 percent / CF₃CO₂H / CH₂Cl₂ / 2 h / Ambient temperature

2: 2.) Cl₂CHOMe / 1.) TMSOTf, 2.) ZnCl₂ / 1.) CH₂Cl₂, a) -20 deg C, b) room temperature, 16 h, 2.) CHCl₃, 65 deg C, 13 h

With Dichloromethyl methyl ether; trimethylsilyl trifluoromethanesulfonate; trifluoroacetic acid; zinc(II) chloride; In dichloromethane;