%J SYNTHESIS-STUTTGART %I szgyaoe %R MTMT:31741 10.1055/s-1995-4079 %P 1240-1242 %T Copper(II) chloride as an efficient reagent for the dehydrogenation of pyridazinone derivatives %A Csende Ferenc %A SzabĂł ZoltĂĄn %A BernĂĄth GĂĄbor %A StĂĄjer GĂŠza %L publicatio32436 %N 10 %V 1995 %D 1995