potassium tert-butylate in tetrahydrofuran; hexane; water

1: triphenyl-methyl-phosphonium iodide With potassium tert-butylate in tetrahydrofuran T=20°C; 3 h; 2: (4-oxo-cyclohexyl)-carbamic acid tert-butyl ester in tetrahydrofuran T=0 - 20°C; 10 h;