(2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

Base Information

Chemical Name:(2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid
CAS No.:198200-53-2
Molecular Formula:C₂₇H₃₆O₈Si
Molecular Weight:516.664
Hs Code.:

Synonyms:(2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

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Chemical Property of (2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

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Technology Process of (2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

There total 8 articles about (2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid 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: 84.0%

: 198200-50-9
Benzoic acid (2S,3R,4R,5R,6S)-4-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-3-yl ester

: 198200-53-2
(2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

Guidance literature:: With chromium(VI) oxide; sulfuric acid; In water; acetone; at 0 ℃;
DOI:10.1016/S0008-6215(97)00149-3

Reference yield:

: 98-88-4
benzoyl chloride

: 198200-53-2
(2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

Guidance literature:: Multi-step reaction with 4 steps

1: 89 percent / 4 Angstroem molecular sieves, pyridine / 0.5 h / -30 °C

2: 97 percent / imidazole / dimethylformamide / 2.5 h / Ambient temperature

3: 54 percent / 9-borabicyclo<3.3.1>nonane / tetrahydrofuran / 2.5 h / 65 °C

4: 84 percent / chromium trioxide, conc. H₂SO₄ / acetone; H₂O / 0 °C

With pyridine; 1H-imidazole; chromium(VI) oxide; 9-borabicyclo[3.3.1]nonane dimer; 4 A molecular sieve; sulfuric acid; In tetrahydrofuran; water; N,N-dimethyl-formamide; acetone;
DOI:10.1016/S0008-6215(97)00149-3

Reference yield:

: 198200-41-8
(2S,3R,4S,5S)-4-Benzyloxy-2-methoxy-6-methylene-tetrahydro-pyran-3,5-diol

: 198200-53-2
(2R,3S,4R,5R,6S)-5-Benzoyloxy-4-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-carboxylic acid

Guidance literature:: Multi-step reaction with 4 steps

1: 89 percent / 4 Angstroem molecular sieves, pyridine / 0.5 h / -30 °C

2: 97 percent / imidazole / dimethylformamide / 2.5 h / Ambient temperature

3: 54 percent / 9-borabicyclo<3.3.1>nonane / tetrahydrofuran / 2.5 h / 65 °C

4: 84 percent / chromium trioxide, conc. H₂SO₄ / acetone; H₂O / 0 °C

With pyridine; 1H-imidazole; chromium(VI) oxide; 9-borabicyclo[3.3.1]nonane dimer; 4 A molecular sieve; sulfuric acid; In tetrahydrofuran; water; N,N-dimethyl-formamide; acetone;
DOI:10.1016/S0008-6215(97)00149-3