(2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester
• CAS No.: 676241-04-6
• Molecular Formula: C₃₃H₃₈O₆
• Molecular Weight: 530.661
• Mol file: 676241-04-6.mol

Synonyms:(2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester

Chemical Property of (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester

There total 3 articles about (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl 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: 58.0%

((2R,3R,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-yl)-methanol (676241-03-5) + tert-butyl alcohol (75-65-0) → (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester (676241-04-6)

Guidance literature:

With acetic anhydride; pyridinium chlorochromate; In dichloromethane; at 20 ℃; for 48h;

DOI:10.1016/j.tetlet.2003.12.032

Reference yield:

(2R,3R,4R,5S,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-6-vinyltetrahydro-2H-pyran (112219-66-6) → (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester (676241-04-6)

Guidance literature:

Multi-step reaction with 3 steps

1: trimethylsilyl trifluoromethanesulfonate / dichloromethane / 1 h / -40 °C

2: sodium methylate / methanol / 20 h / 20 °C

3: acetic anhydride; pyridinium chlorochromate / dichloromethane / 48 h / 20 °C

With trimethylsilyl trifluoromethanesulfonate; sodium methylate; acetic anhydride; pyridinium chlorochromate; In methanol; dichloromethane; 2: Zemplen deacetylation;

DOI:10.1016/j.tetlet.2003.12.032

Reference yield:

Acetic acid (2R,3R,4R,5S,6S)-3,4,5-tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-ylmethyl ester (676241-01-3) → (2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester (676241-04-6)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium methylate / methanol / 20 h / 20 °C

2: acetic anhydride; pyridinium chlorochromate / dichloromethane / 48 h / 20 °C

With sodium methylate; acetic anhydride; pyridinium chlorochromate; In methanol; dichloromethane; 1: Zemplen deacetylation;

DOI:10.1016/j.tetlet.2003.12.032

upstream raw materials:

((2R,3R,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-yl)-methanol

tert-butyl alcohol

(2R,3R,4R,5S,6S)-3,4,5-tris(benzyloxy)-2-(benzyloxymethyl)-6-vinyltetrahydro-2H-pyran

Acetic acid (2R,3R,4R,5S,6S)-3,4,5-tris-benzyloxy-6-vinyl-tetrahydro-pyran-2-ylmethyl ester

Downstream raw materials:

(2S,3S,4R,5S,6S)-3,4,5-Tris-benzyloxy-6-hydroxymethyl-tetrahydro-pyran-2-carboxylic acid tert-butyl ester

(2S,3S,4R,5S,6S)-6-Azidomethyl-3,4,5-tris-benzyloxy-tetrahydro-pyran-2-carboxylic acid

tert-butyl 2,6-anhydro-7-azido-3,4,5-tri-O-benzyl-7-deoxy-L-glycero-L-gluco-hepturonate

(2S,3S,4R,5S,6S)-6-Aminomethyl-3,4,5-tris-benzyloxy-tetrahydro-pyran-2-carboxylic acid tert-butyl ester