maltal

Base Information

• Chemical Name: maltal
• CAS No.: 32447-71-5
• Molecular Formula: C12H20 O9
• Molecular Weight: 308.28
• Mol file: 32447-71-5.mol

Synonyms:D-arabino-Hex-1-enopyranose,1,2-dideoxy-4-O-a-D-glucopyranosyl-(8CI); Maltal

Chemical Property of maltal

Chemical Property:

• Vapor Pressure: 1.55E-17mmHg at 25°C
• Boiling Point: 612°Cat760mmHg
• Flash Point: 323.9°C
• PSA: 149.07000
• Density: 1.61g/cm³
• LogP: -3.56280

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of maltal

There total 4 articles about maltal 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: 96.0%

hexa-O-acetyl-D-maltal (51450-24-9,67314-34-5,67314-36-7,71276-40-9) → 1,5-anhydro-2-deoxy-4-O-(α-D-glucopyranosyl)-D-arabino-hex-1-enitol (32447-71-5,5346-85-0)

Guidance literature:

With sodium methylate; In methanol; at 20 ℃; for 6h;

DOI:10.1016/j.carres.2008.10.026

Reference yield:

1,2,3,6,2',3',4',6'-octa-O-acetylmaltose (3616-19-1,5328-50-7,5346-90-7,6291-42-5,6920-00-9,20764-63-0,20880-65-3,22352-19-8,23973-20-8,32447-69-1,34213-32-6,52554-32-2,53956-64-2,56907-29-0,56994-12-8,56994-13-9,57128-38-8,67650-36-6,68036-17-9,68036-19-1,78215-50-6,78215-51-7,79549-48-7,80446-82-8,85249-04-3,93221-83-1,93779-27-2,111407-83-1,111407-84-2,111407-85-3,120328-65-6,123809-59-6,132341-46-9,132341-47-0,132341-49-2,145307-94-4,20880-60-8) → 1,5-anhydro-2-deoxy-4-O-(α-D-glucopyranosyl)-D-arabino-hex-1-enitol (32447-71-5,5346-85-0)

Guidance literature:

Multi-step reaction with 3 steps

1: hydrogen bromide; acetic acid / 3.5 h / 20 °C

2: acetic acid; copper(ll) sulfate pentahydrate; zinc; sodium acetate / water / 1.5 h / 20 °C

3: triethylamine / methanol; water / 12 h / 20 °C

With copper(ll) sulfate pentahydrate; hydrogen bromide; sodium acetate; acetic acid; triethylamine; zinc; In methanol; water;

DOI:10.1021/acs.orglett.8b03260

Reference yield:

2,3,6,2',3',4',6'-hepta-O-acetyl-α-D-maltosyl bromide (4753-07-5,5160-10-1,14206-57-6,14227-66-8,14257-35-3,42385-75-1,67650-37-7,68682-05-3,69308-57-2,69349-74-2,70223-96-0,70223-97-1,71276-38-5,85248-99-3,118493-15-5,120575-76-0) → 1,5-anhydro-2-deoxy-4-O-(α-D-glucopyranosyl)-D-arabino-hex-1-enitol (32447-71-5,5346-85-0)

Guidance literature:

Multi-step reaction with 2 steps

1: acetic acid; copper(ll) sulfate pentahydrate; zinc; sodium acetate / water / 1.5 h / 20 °C

2: triethylamine / methanol; water / 12 h / 20 °C

With copper(ll) sulfate pentahydrate; sodium acetate; acetic acid; triethylamine; zinc; In methanol; water;

DOI:10.1021/acs.orglett.8b03260

upstream raw materials:

hexa-O-acetyl-D-maltal

α-hepta-O-acetylmaltosyl bromide

1,2,3,6,2',3',4',6'-octa-O-acetylmaltose

2,3,6,2',3',4',6'-hepta-O-acetyl-α-D-maltosyl bromide

Downstream raw materials:

C₆₀H₅₉NO₁₀

Refernces

• 1、 Paul, Somak,Raghothama, Srinivasarao,Jayaraman, Narayanaswamy. "Synthesis of 2-deoxy cyclic and linear oligosaccharides by oligomerization of monomers". experimental part. p. 177 - 186. Retrieved 2009/04/11.