1: 2-Hydroxy-3-methyl-benzaldehyde With potassium carbonate in N,N-dimethyl-formamide T=20°C; 0.25 h; Inert atmosphere; 2: alpha-bromoacetonitrile in N,N-dimethyl-formamide Inert atmosphere;

2-phenyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate; 1,8-diazabicyclo[5.4.0]undec-7-ene in dichloromethane T=20°C; Inert atmosphere;