Patent ID: 8420869
Filing Date: 2013-04-16
Classification: C07B,C07C

Abstract:
1. A process for the preparation of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol, comprising: (A) continuously feeding to a hydrogenation zone hydrogen and a hydrogenatable reactant comprising a 2,2,4,4-tetraalkylcyclobutane-1,3-dione having the formula (I): (B) continuously contacting the hydrogen and hydrogenatable reactant of step (A) under hydrogenation conditions of temperature and pressure with a catalyst comprising nickel, ruthenium, or combination thereof, to form a hydrogenation product comprising a 2,2,4,4-tetraalkylcyclobutane-1,3-diol having the formula (II): (C) continuously recovering from the hydrogenation zone a gaseous effluent comprising the hydrogenation product.