sodium hydroxide in methanol 12 h; Heating;

With  dichloro bis(acetonitrile) palladium(II); p-benozquinone; lithium chloride in  N,N-dimethyl-formamide T=100 - 110°C; 28 h;   

Multi-step reaction with 3 steps 1: 60 percent / pyridine / 6 h / Ambient temperature2: 36 percent / tetrakis(triphenylphosphine)palladium(0) / toluene / Heating3: 58 percent / bis(acetonitrile)palladium chloride, p-benzoquinone, lithium chloride / dimethylformamide / 28 h / 100 - 110 °C  

Multi-step reaction with 4 steps 1: 93 percent / iron / ethanol; acetic acid / 3.5 h / Heating2: 60 percent / pyridine / 6 h / Ambient temperature3: 36 percent / tetrakis(triphenylphosphine)palladium(0) / toluene / Heating4: 58 percent / bis(acetonitrile)palladium chloride, p-benzoquinone, lithium chloride / dimethylformamide / 28 h / 100 - 110 °C  

Multi-step reaction with 2 steps 1: 36 percent / tetrakis(triphenylphosphine)palladium(0) / toluene / Heating2: 58 percent / bis(acetonitrile)palladium chloride, p-benzoquinone, lithium chloride / dimethylformamide / 28 h / 100 - 110 °C