1: in diethyl ether T=0°C; Inert atmosphereReflux; 2: With water in diethyl ether Acidic conditions;

1: 2-methoxybromobenzene With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.166667 h; 2: N-Cyclopentanecarbonyl-N,O-dimethylhydroxylamine in tetrahydrofuran; hexane T=-78 - 20°C;

1: BCl3 / CH2Cl2 / -78 - 20 °C 2: pyridine / CH2Cl2 / -78 - 20 °C View Scheme

boron trichloride in dichloromethane T=-78 - 20°C;