(2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol

Base Information

• Chemical Name: (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol
• CAS No.: 635316-98-2
• Molecular Formula: C₂₀H₂₃FO₅
• Molecular Weight: 362.398
• Mol file: 635316-98-2.mol

Synonyms:(2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol

Chemical Property of (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol

There total 2 articles about (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol 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:

Acetic acid (2R,3R,4S,5S,6R)-2-acetoxymethyl-3,5-bis-benzyloxy-6-fluoro-tetrahydro-pyran-4-yl ester → (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol (635316-98-2)

Guidance literature:

With sodium methylate; In methanol; at 0 ℃; for 4h;

DOI:10.1016/S0008-6215(03)00357-4

Reference yield:

phenyl 3,6-di-O-acetyl-2,4-di-O-benzyl-1-thio-α-D-mannopyranoside (213998-08-4) → (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol (635316-98-2)

Guidance literature:

Multi-step reaction with 2 steps

1: NBS; DAST / CH₂Cl₂ / 12 h / -10 °C

2: NaOMe / methanol / 4 h / 0 °C

With N-Bromosuccinimide; sodium methylate; 4,4'-diaminostilbene-2,2'-disulfonic acid; In methanol; dichloromethane;

DOI:10.1016/S0008-6215(03)00357-4

Reference yield: 48.0%

phenyl 2,3,4,6-tetra-O-acetyl-1-thio-α-D-mannopyranoside (13992-16-0,23661-28-1,24404-53-3,28512-68-7,65236-85-3,86782-39-0,121524-01-4,121570-34-1,108032-93-5) + (2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol (635316-98-2) + Acetic acid (2R,3R,4S,5S,6R)-3-acetoxy-2-acetoxymethyl-6-phenylsulfanyl-5-((2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester → C60H75FO31 + C72H91FO39

Guidance literature:

(2R,3S,4S,5S,6R)-3,5-Bis-benzyloxy-2-fluoro-6-hydroxymethyl-tetrahydro-pyran-4-ol; Acetic acid (2R,3R,4S,5S,6R)-3-acetoxy-2-acetoxymethyl-6-phenylsulfanyl-5-((2R,3S,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester; With N-iodo-succinimide; trifluorormethanesulfonic acid; In dichloromethane; at -40 ℃; for 1h;

phenyl 2,3,4,6-tetra-O-acetyl-1-thio-α-D-mannopyranoside; In dichloromethane; at -40 ℃; for 0.5h;

DOI:10.1016/S0008-6215(03)00357-4

upstream raw materials:

phenyl 3,6-di-O-acetyl-2,4-di-O-benzyl-1-thio-α-D-mannopyranoside