tetrabutyl ammonium fluoride in tetrahydrofuran; N,N-dimethyl-formamide T=60°C; 2 h; regioselective reaction;

1: tetrabutyl ammonium fluoride / tetrahydrofuran; N,N-dimethyl-formamide / 1 h / 60 °C / Inert atmosphere 2: tetrabutyl ammonium fluoride / tetrahydrofuran; N,N-dimethyl-formamide / 1 h / 60 °C / Inert atmosphere View Scheme

1: tetrabutyl ammonium fluoride / tetrahydrofuran; N,N-dimethyl-formamide / 1 h / 60 °C / Inert atmosphere 2: tetrabutyl ammonium fluoride / tetrahydrofuran; N,N-dimethyl-formamide / 1 h / 60 °C / Inert atmosphere View Scheme