207223-32-3

Basic information

• Product Name: (5S,6R)-2-(2-propylidene)-4,5-dimethyl-6-phenylmorpholine-3-one
• Synonyms: (5S,6R)-2-(2-propylidene)-4,5-dimethyl-6-phenylmorpholine-3-one
• CAS NO: 207223-32-3
• Molecular Weight: 245.321
• Mol File: 207223-32-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: (5S,6R)-2-(2-propylidene)-4,5-dimethyl-6-phenylmorpholine-3-one(CAS DataBase Reference)
• NIST Chemistry Reference: (5S,6R)-2-(2-propylidene)-4,5-dimethyl-6-phenylmorpholine-3-one(207223-32-3)
• EPA Substance Registry System: (5S,6R)-2-(2-propylidene)-4,5-dimethyl-6-phenylmorpholine-3-one(207223-32-3)

Safety Data

• Hazardous Substances Data: 207223-32-3(Hazardous Substances Data)

Upstream product

• 759-05-7 3-methyl-2-ketobutanoic acid 
• 55109-47-2 3-methyl-2-oxobutanoyl chloride 
• 299-42-3 ephedrine 
• 207223-22-1 (2S,5S,6R)-2-Hydroxy-2-isopropyl-4,5-dimethyl-6-phenyl-morpholin-3-one 
• 762-72-1 allyl-trimethyl-silane 

Downstream Products

• 207223-40-3 (2S,5S,6R)-2-(2-propyl)-4,5-dimethyl-6-phenylmorpholin-6-one 
• 17407-56-6 (R)-2-Hydroxy-3-methylbutyric acid 
• 259107-28-3 2S,5S,6R-4,5-dimethyl-6-phenyl-2-(1,1-dimethyl-2-methoxy ethyl) morpholin-3-one 
• 79-50-5 (S)-pantolactone 
• 259107-26-1 8R,6R,9S,5,5,9,10-tetramethyl-1,3,7-trioxa-10-aza-spiro[5,5]undecan-11-one 

Relevant articles and documents

Enantioselective synthesis of (S)-(+)-pantolactone

(equation presented) The Prins reaction of a chiral alkylidene morpholinone derived from (1R,2S)-ephedrine and 3-methyl-2-oxobutanoic acid proceeds with good diastereoselectivity to generate a spiro bis-acetal. Lewis acid mediated diastereoselective reductive cleavage of the spiro acetal and subsequent removal of the ephedrine portion generates a α-hydroxy-γ-methoxy carboxamide which is readily converted to (S)-(+)-pantolactone with high enantiomeric excess.

Asymmetric Allylation and Reduction on an Ephedrine-Derived Template: Stereoselective Synthesis of α-Hydroxy Acids and Derivatives

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