1: 89 percent / pyridine / CH2Cl2 / 15 h / Heating 2: 3 percent / 1-methyl-1-phenylhydrazine / bis-(2-methoxy-ethyl) ether / 4.5 h / Heating View Scheme

1: thionyl chloride / CH2Cl2 2: 89 percent / pyridine / CH2Cl2 / 15 h / Heating 3: 3 percent / 1-methyl-1-phenylhydrazine / bis-(2-methoxy-ethyl) ether / 4.5 h / Heating View Scheme

N1-methyl-N1-phenyl hydrazine in diethylene glycol dimethyl ether 4.5 h; Heating;

in diethylene glycol dimethyl ether 4.5 h; Heating;