Bucherer Reaction

Name:
Bucherer Reaction
Detailed information:
A procedure for preparation of β-naphthylamine by heating β-naphthol with a water solution of ammonium sulfite. “A sulfite solution is prepared by saturating concentrated ammonia solution with sulfur dioxide and adding an equal volume of concentrated ammonia solution, β-naphthol is added and the charge is heated in an autoclave provided with a stirrer or a shaking mechanism.” (L. F. Fieser). This reaction is also involved in the preparation of several azo dye intermediates, e.g., Tobias acid.