Preparation of 1,4-butanediol and tetrahydrofuran

摘要

Mixtures which contain 1,4-butanediol and tetrahydrofuran are prepared by heating 4-hydroxybutyraldehyde of the formula <IMAGE> Ia at 20 DEG -300 DEG C. in the presence or absence of 1,4-butanediol and subjecting the resulting acetals of the formulae <IMAGE> +TR <IMAGE> to a catalytic hydrogenation at 50 DEG -300 DEG C. and 1-350 bar.