Abstract: The current invention relates to a method for the production of at least one organometallic compound comprising: filling solid metal particulates or metal containing solid particulates into a reactor column obtaining a metal bed; continuously contacting a fluid of at least one substrate, preferably the fluid comprises a water-free solvent, with the metal bed; transporting the fluid against gravity through the metal bed, characterized in that, the fluid is partially recirculated again over the metal bed. The invention also relates to a device for the production of at least one organometallic compound, the organometallic compound itself and chemical substances produced from said compound.

Abstract: The present invention lies in the field of nitrocellulose nail varnishes and its subject is the use of an arylsulphonylurethane as film forming resin in these varnishes, which makes it possible in particular to avoid the release of formaldehyde, a carcinogenic compound which is formed when an arylsulphonamide-formaldehyde resin is employed.Another subject of the invention is new poly(arylsulphonylurethanes) containing from 2 to 5 arylsulphonylurethane groups and possessing a molecular mass of between 450 and 1500.