hydrogenchloride; n-butyllithium in cyclohexane; N,N-dimethyl-formamide

1: para-thiocresol With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in hexane T=0 - 20°C; 24 h; Inert atmosphere; 2: 1-piperidinecarboxaldehyde in hexane T=0 - 20°C; 24 h; Inert atmosphere;

n-butyllithium; N,N,N',N,-tetramethylethylenediamine in hexane T=25°C; 16 h;