triethylamine; trichlorophosphate in dichloromethane 1 h; Ambient temperature;

1: 37 percent / NaH (65percent in oil) / tetrahydrofuran / 20 - 35 °C / var. aldehydes and ketones 2: 84 percent / phosphoryl chloride, triethylamine / CH2Cl2 / 1 h / Ambient temperature View Scheme

1: 70 percent / DBU / tetrahydrofuran / 40 - 50 °C / var. methyl α-isocyanocinnamates; var. reag.: NaH 2: 85 percent / NaOH / methanol; H2O / 18 h / 50 °C 3: 60 percent / etanolamine / 1 h / 170 °C View Scheme

sodium methylate; 3-chloro-benzenecarboperoxoic acid in methanol 0.5 h;

1,8-diazabicyclo[5.4.0]undec-7-ene in tetrahydrofuran T=40 - 50°C; 3 h;