16749-41-0

Basic information

• Product Name: 5,6-anhydro-1,2-O-(1-methylethylidene)-5-thiohexofuranose
• CAS NO: 16749-41-0
• Molecular Formula: C₉H₁₄O₄S
• Molecular Weight: 218.2701
• Mol File: 16749-41-0.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 360°C at 760 mmHg
• Flash Point: 171.5°C
• Density: 1.382g/cm³
• Vapor Pressure: 1.23E-06mmHg at 25°C
• Refractive Index: 1.576
• CAS DataBase Reference: 5,6-anhydro-1,2-O-(1-methylethylidene)-5-thiohexofuranose(CAS DataBase Reference)
• NIST Chemistry Reference: 5,6-anhydro-1,2-O-(1-methylethylidene)-5-thiohexofuranose(16749-41-0)
• EPA Substance Registry System: 5,6-anhydro-1,2-O-(1-methylethylidene)-5-thiohexofuranose(16749-41-0)

Safety Data

• Hazardous Substances Data: 16749-41-0(Hazardous Substances Data)

Upstream product

• 14156-07-1 diphenylthiophosphoric acid 
• 15354-69-5 5,6-anhydro-1,2-O-isopropylidene-α-D-glucofuranose 
• 2465-65-8 O,O'-diethyl thiophosphoric acid 

Relevant articles and documents

REACTION OF SUGAR EPOXIDES WITH PHOSPHOROTHIOIC ACIDS, EVIDENCE OF THE PENTACOORDINATE PHOSPHORUS INTERMEDIATE IN THE REACTION OF 5,6-ANHYDRO-1,2-O-ISOPROPYLIDENE-α-D-GLUCOFURANOSE WITH PHOSPHOROTHIOIC ACIDS

The reaction of sugar epoxides with organic monothioacids of phosphorus provides a convenient procedure for synthesizing sugar thiophosphates and mercaptosugar phosphates.Based on detailed analysis of intermediates and factors influencing the reactivity of phosphorus monothioacids with sugar epoxides the reaction scheme is proposed involving pentacoordinate intermediate which undergoes endo or/and exocyclic elimination.It was found that the reaction of 5,6-anhydro-1,2-O-isopropylidene-α-D-glucoforanose 7 with phosphorothioic acids 8a and 8b yields three types of products in equilibrium: the thiophosphates 9a and 9b, the oxathiaphospholanes 11a and 11b and the mercaptophosphates 10a and 10b.Under more drastic conditions the phosphates 10a and 10b can be converted irreversibly into the episulphide 12 and phosphoric acids 13a and 13b, respectively.It is clearly possible that both compounds 10 and 11 can be formed from the same pentacoordinate intermediate, and the experimental evidence provides strong support for it.