PRODUCTION OF TRIETHYLENE DIAMINE COMPOUNDS AND PIPERAZINE COMPOUNDS

摘要

PURPOSE:To produce the subject compounds in high selectivity and in good yields by treating an amine compound in the presence of a crystalline aluminosilicate catalyst carrying an inorganic salt. CONSTITUTION:An amine compound having a group of the formula (R<1>-R<4> are H, 1-3C alkyl) is treated at 250-450 deg.C in the presence of a crystalline aluminosilicate catalyst which carries an inorganic salt (e.g. sodium sulfate) and which has a silica/alumina molar ratio of >=12/1. preferably (40-5000)/1 to produce the objective compound. The carrying treatment of the inorganic salt on the crystalline aluminosilicate can be performed e.g. by a method comprising impregnating the powder or molded product of the aluminosilicate with the inorganic salt or mixing the powder of the aluminosilicate with the powder of the inorganic salt when molded, before or after the calcination of the catalyst.