(2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Base Information

• Chemical Name: (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester
• CAS No.: 194155-42-5
• Molecular Formula: C₉H₁₆O₇
• Molecular Weight: 236.222
• Mol file: 194155-42-5.mol

Synonyms:(2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Chemical Property of (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

There total 1 articles about (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl 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: 95.0%

(2S,4S,5S,6R)-4,5-Diacetoxy-6-acetoxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester (194155-40-3) → (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester (194155-42-5,85549-51-5)

Guidance literature:

With sodium hydrogencarbonate; In methanol; for 1h; Ambient temperature;

DOI:10.1016/S0040-4020(97)00675-3

Reference yield: 82.0%

tert-butylchlorodiphenylsilane (58479-61-1) + (2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester (194155-42-5,85549-51-5) → (2S,4S,5S,6R)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-4,5-dihydroxy-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester (194155-43-6)

Guidance literature:

With dmap; TEA; In dichloromethane; Ambient temperature;

DOI:10.1016/S0040-4020(97)00675-3

Reference yield:

(2S,4S,5S,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester (194155-42-5,85549-51-5) → (2S,4R,5R,6R)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-4,5-diisopropoxy-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Guidance literature:

Multi-step reaction with 8 steps

1: 82 percent / TEA, DMAP / CH₂Cl₂ / Ambient temperature

2: Py / CH₂Cl₂ / 0.17 h / -10 °C

3: 18-crown-6 / toluene / 60 - 70 °C

4: TBAF / tetrahydrofuran / 1 h / Ambient temperature

5: pyridine

6: 93 percent / NaHCO₃ / methanol / 1 h / Ambient temperature

7: TEA, DMAP / CH₂Cl₂ / Ambient temperature

8: CSA / dimethylformamide / 1 h / 50 °C

With pyridine; dmap; 18-crown-6 ether; TEA; camphor-10-sulfonic acid; tetrabutyl ammonium fluoride; sodium hydrogencarbonate; In tetrahydrofuran; pyridine; methanol; dichloromethane; N,N-dimethyl-formamide; toluene;

DOI:10.1016/S0040-4020(97)00675-3

upstream raw materials:

(2S,4S,5S,6R)-4,5-Diacetoxy-6-acetoxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Downstream raw materials:

(2S,4S,5S,6R)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-4,5-dihydroxy-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

(2S,4R,5R,6R)-4,5-Dihydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

(2S,4R,5R,6R)-4,5-Diacetoxy-6-(tert-butyl-diphenyl-silanyloxymethyl)-2-methoxy-tetrahydro-pyran-2-carboxylic acid methyl ester

Refernces