Method for producing alkylsilyloxy substituted benzyl compound

The present invention provides an industrially advantageous method for producing an alkylsilyloxy substituted benzyl compound, wherein a reaction process is easy to control. A method for producing an alkylsilyloxy substituted benzoyl compound which is represented by general formula (5) (wherein one to five moieties among R1c to R5c each represent an alkyloxy group substituted by one to three alkylsilyloxy groups, while having 1 to 29 carbon atoms, and the rest each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; and RC represents a hydrogen atom, a hydroxy group, an alkoxy group having 1 to 6 carbon atoms, or a group represented by the following formula (wherein one to five moieties among R1c to R5c each represent an alkyloxy group substituted by one to three alkylsilyloxy groups, while having 1 to 29 carbon atoms, and the rest each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or an al