Alpha-halotetramethycyclohexanone, a method for the preparation thereof, and a method for the preparation of a (2,3,4,4-tetramethylcyclopentyl)methy carboxylate compound

A method for the preparation of a (2,3,4,4-tetramethylcyclopentyl)methyl carboxylate compound, comprising

• a step of subjecting alpha-halotetramethylcyclohexanone represented by the following general formula (1a) or (1b):
• wherein X represents a chlorine atom or a bromine atom, to a Favorskii rearrangement to obtain a 2,3,4,4-tetramethylcyclopentane compound represented by the following general formula (2):
• wherein R1 represents a hydrogen atom or a monovalent 01-15 hydrocarbon group,
• a step of subjecting 2,3,4,4-tetramethylcyclopentane compound (2) to reduction to obtain (2,3,4,4-tetramethylcyclopentyl)methanol represented by the following general formula (3):
• and a step of subjecting (2,3,4,4-tetramethylcyclopentyl) methanol(3) to acylation to obtain a (2,3,4,4-tetramethylcyclopentyl)methyl carboxylate compound represented by the following general formula (4):
• wherein R2 represents a monovalent C1-15 hydrocarbon group.