Process for the preparation of organo-molybdenum compounds

摘要

This invention is a process for preparation of 2,4-heteroatom-substituted molybdena-3,3-dioxocycloalkane compounds by reacting diol-, diamino, thiol-alcohol- and amino-alcohol-compounds with the following reagents:
€¢ ammonium molybdate (or in situ produced ammonium molybdate by the reaction of ammonia with molybdenum trioxide or molybdic acid) as a molybdenum source,
€¢ ammonia as an additional or secondary reagent or promoter, in molar ratio NH 3 :Mo (amount of molybdenum in the molybdenum source) of ‰¥1:1, preferably 1-3:1, more preferably 2-3:1, and most preferred 2.2-2.65:1.