82259-92-5

Basic information

• Product Name: Butanoic acid, 3-oxo-, (2E)-2-butenyl ester
• CAS NO: 82259-92-5
• Molecular Formula: C8H12O3
• Molecular Weight: 156.181
• Mol File: 82259-92-5.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Butanoic acid, 3-oxo-, (2E)-2-butenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Butanoic acid, 3-oxo-, (2E)-2-butenyl ester(82259-92-5)
• EPA Substance Registry System: Butanoic acid, 3-oxo-, (2E)-2-butenyl ester(82259-92-5)

Safety Data

• Hazardous Substances Data: 82259-92-5(Hazardous Substances Data)

Upstream product

• 674-82-8 4-methyleneoxetan-2-one 
• 6117-91-5 (E/Z)-2-buten-1-ol 
• 105-45-3 acetoacetic acid methyl ester 
• 141-97-9 ethyl acetoacetate 

Downstream Products

• 14746-03-3 trans-2-buten-1-yl diazoacetate 
• 312910-87-5 methyl (1S,2R,3R)-2-hydroxymethyl-3-methylcyclopropane-1-carboxylate 
• 312910-89-7 methyl (1S,2S,3R)-2-formyl-3-methylcyclopropane-1-carboxylate 
• 312910-88-6 methyl (1S,2R,3R)-2-formyl-3-methylcyclopropane-1-carboxylate 

Relevant articles and documents

General and efficient transesterification of β-keto esters with various alcohols using Et3N as a br?nsted base additive

Transesterification of β-keto esters with a wide variety of allyl, benzyl, propargyl, and alkyl alcohols using, for the first time, commercially available and inexpensive Et3N as a Br?nsted base additive, is efficiently performed in toluene at reflux. The corresponding esters are exclusively obtained in 57-98% yields with no trace amounts of γ,δ-ketones, usually expected from the decarboxylative Carroll rearrangement.

AgOTf-catalyzed transesterification of β-keto esters

AgOTf proved to be an effective catalyst for the transesterification of β-keto esters with primary, secondary and tertiary alcohols. The products were obtained in high yield within a reasonable reaction time period. The kinetics of the transesterification reaction were also studied and the reaction was found to follow second-order kinetics. Copyright