1: para-tert-butylcalix[8]arene With sodium hydride in tetrahydrofuran; DMF (N,N-dimethyl-formamide) T=80°C; 0.5 h; 2: 1-iodo-propane in tetrahydrofuran; DMF (N,N-dimethyl-formamide) 12 h;

1: para-tert-butylcalix[8]arene With sodium hydride in N,N-dimethyl-formamide 0.333333 h; 2: 1-iodo-propane in N,N-dimethyl-formamide T=20°C;

1: para-tert-butylcalix[8]arene With sodium hydride in tetrahydrofuran; N,N-dimethyl-formamide 0.5 h; Inert atmosphereHeating; 2: n-propyl halide in tetrahydrofuran; N,N-dimethyl-formamide Inert atmosphereReflux;