Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester

Base Information

• Chemical Name: Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester
• CAS No.: 138566-31-1
• Molecular Formula: C₂₆H₃₂O₇S
• Molecular Weight: 488.602
• Mol file: 138566-31-1.mol

Synonyms:Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester

Chemical Property of Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester

There total 2 articles about Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl 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: 76.0%

1,2,6-tri-O-acetyl-3,4-di-O-benzyl-α-D-mannopyranose (65827-57-8) + tri-n-butyltin(SC2H5) (23716-85-0) → Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester (138566-31-1)

Guidance literature:

With trimethylsilyl trifluoromethanesulfonate; In 1,2-dichloro-ethane;

DOI:10.1016/0040-4039(91)80242-X

Reference yield:

3,4,6-tri-O-benzyl-1,2-O-(methoxyethylidene)-β-D-mannopyranose (16697-49-7) → Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester (138566-31-1)

Guidance literature:

Multi-step reaction with 2 steps

1: 68 percent / H₂SO₄ / acetic acid / -10 °C

2: 76 percent / trimethylsilyl trifluoromethanesulfonate / 1,2-dichloro-ethane

With trimethylsilyl trifluoromethanesulfonate; sulfuric acid; In acetic acid; 1,2-dichloro-ethane;

DOI:10.1016/0040-4039(91)80242-X

Reference yield:

Acetic acid (2R,3S,4S,5R,6R)-6-acetoxymethyl-4,5-bis-benzyloxy-2-ethylsulfanyl-tetrahydro-pyran-3-yl ester (138566-31-1) → ethyl 3,4-di-O-benzyl-1-thio-α-D-mannopyranoside (496812-01-2)

Guidance literature:

With sodium methylate; In methanol; dichloromethane;

DOI:10.1016/0040-4039(91)80242-X

upstream raw materials:

1,2,6-tri-O-acetyl-3,4-di-O-benzyl-α-D-mannopyranose

tri-n-butyltin(SC₂H₅)

3,4,6-tri-O-benzyl-1,2-O-(methoxyethylidene)-β-D-mannopyranose

Downstream raw materials:

ethyl 3,4-di-O-benzyl-1-thio-α-D-mannopyranoside

ethyl 2,6-di-O-benzoyl-3,4-di-O-benzyl-1-thio-α-D-mannopyranoside

(2R,3S,4R,5R,6R)-4,5-Bis-benzyloxy-2-((2S,3S,4S,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-methoxy-tetrahydro-pyran-3-yloxy)-6-hydroxymethyl-tetrahydro-pyran-3-ol

C₆₂H₆₂O₁₃