potassium carbonate in acetone 5 h; Heating;

potassium carbonate in N,N-dimethyl-formamide microwave irradiation;

1: With potassium tert-butylate in tetrahydrofuran T=70°C; Dieckmann cyclisation; 0.5 h; 2: With hydrogenchloride in ethanol; water 0.0666667 h; microwave irradiation;