The acid-catalysed cyclisation of methyl 1-(3-oxobutyl)-2-oxocyclopentanecarboxylate: X-ray analysis of the product
Abstract
An X-ray analysis confirms that the acid-catalysed cyclisation of methyl 1-(3-oxobutyl)-2-oxocyclopentane-carboxylate leads to the formation of methyl 5-methyl-7-oxo-6-oxabicyclo[3.2.2]nonane-1-carboxylate via a rearrangement reaction.