81668-66-8

Basic information

• Product Name: Acetic acid (Z)-(S)-1-((R)-2-acetoxy-1-hydroxy-ethyl)-4-ethoxy-6-oxo-6-phenyl-hex-2-enyl ester
• CAS NO: 81668-66-8
• Molecular Weight: 378.422
• Mol File: 81668-66-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Acetic acid (Z)-(S)-1-((R)-2-acetoxy-1-hydroxy-ethyl)-4-ethoxy-6-oxo-6-phenyl-hex-2-enyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Acetic acid (Z)-(S)-1-((R)-2-acetoxy-1-hydroxy-ethyl)-4-ethoxy-6-oxo-6-phenyl-hex-2-enyl ester(81668-66-8)
• EPA Substance Registry System: Acetic acid (Z)-(S)-1-((R)-2-acetoxy-1-hydroxy-ethyl)-4-ethoxy-6-oxo-6-phenyl-hex-2-enyl ester(81668-66-8)

Safety Data

• Hazardous Substances Data: 81668-66-8(Hazardous Substances Data)

Upstream product

• 13735-81-4 1-styrenyloxytrimethylsilane 
• 3323-72-6 ethyl 4,6-di-O-acetyl-2,3-dideoxy-α-D-erythrohex-2-enopyranoside 

Downstream Products

• 88377-39-3 Acetic acid (Z)-(S)-1-((R)-1,2-diacetoxy-ethyl)-4-ethoxy-6-oxo-6-phenyl-hex-2-enyl ester 

Relevant articles and documents

Stereocontrolled Routes to Functionalized C-Glycopyranosides

4,6-O-Ethylidene-D-glucopyranose (1) reacts with an acid-washed, stabilized Wittig reagent to give the trans-oct-2-enoate 2 in excellent yield.Cyclization is effected by treatment with dilute base, and after 1 h, a 1:1 mixture of anomers exists which is the optimum concentration of the α-D form.Continuing base treatment for 5 h leads to the β-D anomer exclusively. α-D-C-Glycopyranosides can be obtained as predominant products by Lewis acid catalyzed condensation of acetylated glycals with siloxyalkenes, and anomerization to the β-D forms can be effected with potassium tert-butoxide.For a given pair of these anomers, 1H or 13C NMR pa rameters can be used for assigning configuration α or β.