VERFAHREN ZUR HERSTELLUNG VON 1,4- DIAMINONAPHTHALIN UND/ODER 1,5-DIAMINONAPHTHALIN

摘要

Process for the production of 1,4-diaminonaphthalene and/or 1,5-diaminonaphthalene comprises: (A) reaction of naphthalene with a halogen; (B) optionally separating 1,4-dihalonaphthalene or 1,5-dihalonaphthalene from the reaction mixture from (A); and (C) reaction of the mixture from (A) or dihalonaphthalene(s) from (B) with ammonia in the presence of a catalyst. Independent claims are included for processes for the production of 1,4-diisocyanatonaphthalene and/or 1,5-diisocyanatonaphthalene by reaction of naphthalene with a halogen, reaction of the 1,4- and/or 1,5-dihalonaphthalene with ammonia in the presence of a catalyst and phosgenation of the 1,4- and/or 1,5-diaminonaphthalene.