15909-67-8

Basic information

• Product Name: Diethylgalactarate
• Synonyms: Diethyl mucate
• CAS NO: 15909-67-8
• Molecular Formula: C₁₀H₁₈O₈
• Molecular Weight: 266.25
• Mol File: 15909-67-8.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Diethylgalactarate(CAS DataBase Reference)
• NIST Chemistry Reference: Diethylgalactarate(15909-67-8)
• EPA Substance Registry System: Diethylgalactarate(15909-67-8)

Safety Data

• Hazardous Substances Data: 15909-67-8(Hazardous Substances Data)

Upstream product

• 64-17-5 ethanol 
• 526-99-8 meso-galactaric acid 

Downstream Products

• 496-64-0 3-hydroxy-2-pyrone 
• 88-14-2 2-furanoic acid 
• 120364-00-3 tetra-O-benzoyl-galactaric acid diethyl ester 
• 120364-00-3 Diethyl 2,3,4,5-tetra-O-benzoylgalactarate 
• 109785-42-4 galactaric acid dianilide 
• 171253-32-0 Diethyl 2,5-di-O-tosylgalactarate 
• 64-17-5 ethanol 
• 124-38-9 carbon dioxide 
• 7732-18-5 water 
• 608-66-2 D-galactitol 
• 133-42-6 galactonic acid 
• 16741-03-0 1,3,4,6-Tetra-O-acetyl-2,5-di-O-tosylgalactitol 
• 4551-72-8 pyrrole-2-carboxamide 

Relevant articles and documents

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H2-Free Re-Based Catalytic Dehydroxylation of Aldaric Acid to Muconic and Adipic Acid Esters

As one of the most demanded dicarboxylic acids, adipic acid can be directly produced from renewable sources. Hexoses from (hemi)cellulose are oxidized to aldaric acids and subsequently catalytically dehydroxylated. Hitherto performed homogeneously, we present the first heterogeneous catalytic process for converting an aldaric acid into muconic and adipic acid. The contribution of leached Re from the solid pre-reduced catalyst was also investigated with hot-filtration test and found to be inactive for dehydroxylation. Corrosive or hazardous (HBr/H2) reagents are avoided and simple alcohols and solid Re/C catalysts in an inert atmosphere are used. At 120 °C, the carboxylic groups are protected by esterification, which prevents lactonization in the absence of water or acidic sites. Dehydroxylation and partial hydrogenation yield monohexenoates (93 %). For complete hydrogenation to adipate, a 16 % higher activation barrier necessitates higher temperatures.

CHEMICAL PROCESS TO CONVERT MUCIC ACID TO ADIPIC ACID

The present invention provides a method of synthesizing an ester of a saturated carboxylic acid from a saturated polyhydroxycarboxylic acid by performing a deoxydehydration reaction and a hydrogen transfer reaction.