in tetrahydrofuran T=-20 - 0°C; Inert atmosphere;

1: 2-phenoxyacetic acid With 1,1'-carbonyldiimidazole in dichloromethane; water T=0 - 20°C; 0.5 h; Inert atmosphere; 2: O,N-dimethyl-hydroxylamine hydrochloride With triethylamine in dichloromethane; water T=0 - 20°C; Inert atmosphere;

pyridine in chloroform 2 h; Ambient temperature;

triethylamine in dichloromethane T=0 - 20°C;

1: SOCl2 / Heating 2: diethyl ether View Scheme

in diethyl ether