(2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

Base Information

Chemical Name:(2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester
CAS No.:118545-20-3
Molecular Formula:C₂₆H₃₂O₈
Molecular Weight:472.535
Hs Code.:

Synonyms:(2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

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Chemical Property of (2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

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Technology Process of (2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

There total 4 articles about (2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester 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: 42.0%

: 617-35-6
2-oxo-propionic acid ethyl ester

: 118545-15-6
(2S,3R,4R,5S)-3-Benzyloxy-6-benzyloxymethyl-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-trimethylsilanyloxy-tetrahydro-pyran

: 118545-20-3
(2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

: 118545-24-7
(2S,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

Guidance literature:: With trimethylsilyl trifluoromethanesulfonate; In dichloromethane; at -5 ℃; for 24h;
DOI:10.1016/0008-6215(88)85070-5

Reference yield: 14.0%

: 617-35-6
2-oxo-propionic acid ethyl ester

: 176757-34-9
methyl 2,6-di-O-benzyl-3,4-di-O-trimethylsilyl-α-D-galactopyranoside

: 118545-20-3
(2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

: 118545-24-7
(2S,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

: (4aS,5R,7S,8R,8aS)-8-Benzyloxy-5-benzyloxymethyl-3-ethoxy-7-methoxy-3-methyl-tetrahydro-pyrano[3,4-b][1,4]dioxin-2-one

Guidance literature:: With trifluorormethanesulfonic acid; trimethylsilyl trifluoromethanesulfonate; In diethyl ether; Title compound not separated from byproducts; 1.) -20 deg C, 2 d, 2.) -5 deg C, 1 d;
DOI:10.1016/0008-6215(95)00383-5

Reference yield:

: 53685-11-3
(2R,3R,4S,5R,6S)-5-Benzyloxy-2-benzyloxymethyl-6-methoxy-tetrahydro-pyran-3,4-diol

: 118545-20-3
(2R,3aS,4R,6S,7R,7aS)-7-Benzyloxy-4-benzyloxymethyl-6-methoxy-2-methyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 91 percent / TFA / CH₂Cl₂ / 7 h

2: Me₃SiOTf, TfOH / diethyl ether / 1.) -20 deg C, 2 d, 2.) -5 deg C, 1 d

With trifluorormethanesulfonic acid; trimethylsilyl trifluoromethanesulfonate; trifluoroacetic acid; In diethyl ether; dichloromethane;
DOI:10.1016/0008-6215(95)00383-5