Ketene Chemistry 2. A General Procedure for the Synthesis of 2-Alkoxycyclopropanecarboxylic Esters and Acids Starting from Aldehydes and Ketene
Alkyl 3-alkoxy-4-bromocarboxylates are prepared by the Lewis acid-catalyzed reaction of α-bromoaldehyde acetals with ketene.Base-catalyzed cyclization of these intermediates affords 2-alkoxycyclopropanecarboxylic esters.
Rasmussen, Preben Boedstrup,Boewadt, Soeren
p. 114 - 117
(2007/10/02)
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