| http://www.w3.org/ns/prov#value | - It is furthermore possible to convert a radical R3 and/or R4 in a compound of the formula I into another radical R3 and/or R4, for example by reducing nitro groups to amino groups (for example by hydrogenation over Raney nickel or Pd-on-charcoal in an inert solvent, such as methanol or ethanol) or hydrolysing cyano groups to COOH groups.
|
