Celite; pyridinium chlorochromate in dichloromethane 3 h; Ambient temperature;

silica gel; trichlorophosphate Formylation; 0.025 h; Microwave irradiation (300 W);

1: 98 percent / LAH / diethyl ether / 18 h / Heating 2: 76 percent / pyridinium chlorochromate, celite / CH2Cl2 / 3 h / Ambient temperature View Scheme

1: 97 percent / diethyl ether 2: 98 percent / LAH / diethyl ether / 18 h / Heating 3: 76 percent / pyridinium chlorochromate, celite / CH2Cl2 / 3 h / Ambient temperature View Scheme

1: 79 percent / sodium hypobromite 2: 97 percent / diethyl ether 3: 98 percent / LAH / diethyl ether / 18 h / Heating 4: 76 percent / pyridinium chlorochromate, celite / CH2Cl2 / 3 h / Ambient temperature View Scheme

1: 26 percent / AlCl3 / nitromethane / 5 h / Ambient temperature 2: 79 percent / sodium hypobromite 3: 97 percent / diethyl ether 4: 98 percent / LAH / diethyl ether / 18 h / Heating 5: 76 percent / pyridinium chlorochromate, celite / CH2Cl2 / 3 h / Ambient temperature View Scheme