in dichloromethane T=20°C; Substitution; Staudinger reaction; 0.5 h; Title compound not separated from byproducts;

1: 3-azido-2-cyclohexen-1-one; methyl(diphenyl)-phosphine in dichloromethane T=20°C; Substitution; Staudinger reaction; 0.5 h; 2: 4-nitrobenzaldehdye in chloroform T=45°C; Addition; aza-Wittig reaction; Title compound not separated from byproducts;

1: 3-azido-2-cyclohexen-1-one; methyl(diphenyl)-phosphine in dichloromethane T=20°C; Substitution; Staudinger reaction; 0.5 h; 2: 4-nitrobenzaldehdye in chloroform T=45°C; Addition; aza-Wittig reaction; 3: 1-cyclohex-1-enylpyrrolidine in chloroform T=20°C; Cycloaddition; 17 h;

1: 95 percent / benzene / 4 h 2: 39 percent / potassium carbonate / dioxane / 6 h / Heating View Scheme

iodo azide in acetonitrile 20 h; Ambient temperature;

1: 95 percent / benzene / 4 h 2: 56 percent / potassium carbonate / dioxane / 20 h / Heating; reaction with other α-bromo ketones and α,β-unsaturated ketones View Scheme

in benzene 4 h;