137004-58-1

Basic information

• Product Name: 4-HYDROXY-3,4-DIHYDRO-1LAMBDA6-THIENO[2,3-B]THIOPYRAN-1,1(2H)-DIONE
• Synonyms: 4-HYDROXY-3,4-DIHYDRO-1LAMBDA6-THIENO[2,3-B]THIOPYRAN-1,1(2H)-DIONE
• CAS NO: 137004-58-1
• Molecular Formula: C7H8O3S2
• Molecular Weight: 204.27
• Mol File: 137004-58-1.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-HYDROXY-3,4-DIHYDRO-1LAMBDA6-THIENO[2,3-B]THIOPYRAN-1,1(2H)-DIONE(CAS DataBase Reference)
• NIST Chemistry Reference: 4-HYDROXY-3,4-DIHYDRO-1LAMBDA6-THIENO[2,3-B]THIOPYRAN-1,1(2H)-DIONE(137004-58-1)
• EPA Substance Registry System: 4-HYDROXY-3,4-DIHYDRO-1LAMBDA6-THIENO[2,3-B]THIOPYRAN-1,1(2H)-DIONE(137004-58-1)

Safety Data

• Hazardous Substances Data: 137004-58-1(Hazardous Substances Data)

Upstream product

• 131352-47-1 5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-one-7,7-dioxide 
• 766-77-8 Dimethylphenylsilane 

Downstream Products

• 131352-49-3 Toluene-4-sulfonic acid (R)-7,7-dioxo-4,5,6,7-tetrahydro-7λ⁶-thieno[2,3-b]thiopyran-4-yl ester 

Relevant articles and documents

Enantioselective reduction of ketones and imines catalyzed by (CN-Box)ReV-oxo complexes

The development and application of chiral, non-racemic ReV-oxo complexes to the enantioselective reduction of prochiral ketones is described. In addition to the enantioselective reduction of prochiral ketones, we report the application of these complexes to 1) a tandem Meyer-Schuster rearrangement/reduction to access enantioenriched allylic alcohols and 2) the enantioselective reduction of imines.

PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE ALCOHOLS

A ruthenium complex RuCl[(S,S)-Tsdpen](p-cymene) represented by a formula below and a ketone compound are placed in a polar solvent, and the resulting mixture is mixed under pressurized hydrogen to hydrogenate the ketone compound and to thereby produce an optically active alcohol:

A Practical Process for the Preparation of Tetrahydro-1-methyl-3,3-diphenyl-1H,3H-pyrrolooxazaborole-Borane. A Highly Enantioselective Stoichiometric and Catalytic Reducing Agent

A practical, large-scale process for the preparation of tetrahydro-1-methyl-3,3-diphenyl-1H,3H-pyrrolooxazaborole-borane is reported.The title compound is a stable, free-flowing crystalline solid useful either stoichiometrically or catalytically for the enantioselective reduction of prochiral ketones.When used stoichiometrically to reduce acetophenone the enantioselectivity is >= 99.8 percent ee.