1,2,3,4-DI-O-ISOPROPYLIDENE-ALPHA-D-GALACTURONIC ACID METHYL ESTER

Base Information

• Chemical Name: 1,2,3,4-DI-O-ISOPROPYLIDENE-ALPHA-D-GALACTURONIC ACID METHYL ESTER
• CAS No.: 18524-41-9
• Molecular Formula: C13H20 O7
• Molecular Weight: 288.298
• Hs Code.: 2940000080
• Mol file: 18524-41-9.mol

Synonyms:Galactopyranuronicacid, 1,2:3,4-di-O-isopropylidene-, methyl ester, a-D- (6CI,8CI); 5H-Bis[1,3]dioxolo[4,5-b:4',5'-d]pyran,a-D-galactopyranuronic acidderiv.; Methyl 1,2:3,4-di-O-isopropylidene-a-D-galacturonate

Chemical Property of 1,2,3,4-DI-O-ISOPROPYLIDENE-ALPHA-D-GALACTURONIC ACID METHYL ESTER

Chemical Property:

• Boiling Point: 328.4±42.0 °C(Predicted)
• PSA: 72.45000
• Density: 1.178±0.06 g/cm3(Predicted)
• LogP: 0.55590

Purity/Quality:

99% ^*data from raw suppliers

1,2:3,4-Di-O-isopropylidene-a-D-galacturonide methyl ester ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,2,3,4-DI-O-ISOPROPYLIDENE-ALPHA-D-GALACTURONIC ACID METHYL ESTER

There total 12 articles about 1,2,3,4-DI-O-ISOPROPYLIDENE-ALPHA-D-GALACTURONIC ACID METHYL 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: 85.0%

(3aR,5S,5aR,8aS,8bR)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-carboxylic acid (25253-46-7) + methyl iodide (74-88-4) → (3aR,5S,5aR,8aS,8bR)-methyl-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-5-carboxylate (18524-41-9)

Guidance literature:

With sodium hydrogencarbonate; tetrabutylammomium bromide; In dichloromethane; water; for 20h; Ambient temperature;

Reference yield: 81.8%

methanol (67-56-1) + (3aR,5S,5aR,8aS,8bR)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-carboxylic acid (25253-46-7) → (3aR,5S,5aR,8aS,8bR)-methyl-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-5-carboxylate (18524-41-9)

Guidance literature:

With pyridine; 3,3-dimethyl-D-cysteine; for 20h;

DOI:10.1248/cpb.41.90

Reference yield: 66.0%

methanol (67-56-1) + 1,2:3,4-di-O-isopropylidene-6-S-phenyl-6-thio-α-D-galactopyranoside (104495-07-0) → (3aR,5S,5aR,8aS,8bR)-methyl-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-5-carboxylate (18524-41-9)

Guidance literature:

1,2:3,4-di-O-isopropylidene-6-S-phenyl-6-thio-α-D-galactopyranoside; With pyridine; sulfuryl dichloride; In tetrachloromethane; at 0 ℃;

methanol; With sodium carbonate; In water; at 20 ℃;

DOI:10.1016/S0040-4020(01)00959-0

upstream raw materials:

(3aR,5S,5aR,8aS,8bR)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-carboxylic acid

methanol

(3aR,5S,5aR,8aS,8bR)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-carbaldehyde

methyl iodide

Downstream raw materials:

1,2:3,4-di-O-isopropylidene-α-D-galactopyranose

methyl D-galactopyranuronate

(1,2;3,4-di-O-isopropylidene-α-D-galactopyranose)uronhydrazide

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