1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose

Base Information

• Chemical Name: 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose
• CAS No.: 20514-01-6
• Molecular Formula: C₁₅H₁₈O₇S
• Molecular Weight: 342.37
• Mol file: 20514-01-6.mol

Synonyms:1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose

Chemical Property of 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose

There total 4 articles about 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose 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: 77.0%

1,2-di-O-isopropylidene-5-O-tosyl-D-xylofuranose (6893-65-8,20513-95-5,20513-96-6,34981-06-1,40429-51-4,110349-61-6) → 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose (20514-01-6)

Guidance literature:

With dipyridinium dichromate; acetic anhydride; In dichloromethane; for 2.5h; Inert atmosphere; Reflux;

DOI:10.1002/ejoc.200900573

Reference yield:

1,2-O-isopropylidene-α-D-xylose (20031-21-4) → 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose (20514-01-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 72 percent / 4-(dimethylamino)pyridine, pyridine / 7 h / Ambient temperature

2: Ac₂O, DMSO / 36 h / Ambient temperature

With pyridine; dmap; acetic anhydride; dimethyl sulfoxide;

DOI:10.1002/hlca.19930760504

Reference yield:

p-toluenesulfonyl chloride (98-59-9) → 1,2-O-isopropylidene-5-O-p-toluenesulfonyl-α-D-erythro-ketofuranos-3-ulose (20514-01-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 72 percent / 4-(dimethylamino)pyridine, pyridine / 7 h / Ambient temperature

2: Ac₂O, DMSO / 36 h / Ambient temperature

With pyridine; dmap; acetic anhydride; dimethyl sulfoxide;

DOI:10.1002/hlca.19930760504

upstream raw materials:

1,2-di-O-isopropylidene-5-O-tosyl-D-xylofuranose

1,2-O-isopropylidene-α-D-xylose

p-toluenesulfonyl chloride

Downstream raw materials:

3-<(E)-cyanomethylene>-3-deoxy-1,2-O-isopropylidene-5-O-tosyl-α-D-xylofuranose

3-<(Z)-cyanomethylene>-3-deoxy-1,2-O-isopropylidene-5-O-tosyl-α-D-xylofuranose

(1R,3R,4S,5R,6R)-6-aminomethyl-5-diphenylphosphino-3,4-O-isopropylidene-2-oxabicyclo(3.2.0)heptane-3,4-diol

(1R,3R,4S,5R,6R)-6-cyano-5-diphenylphosphino-3,4-O-isopropylidene-2-oxabicyclo<3.2.0>heptane-3,4-diol