1: 2,2-dimethylpropanal tosylhydrazone With sodium hydride in toluene; mineral oil T=0 - 20°C; 0.5 h; Inert atmosphere; 2: carbon monoxide; aniline With tris-(dibenzylideneacetone)dipalladium(0); Aliquat® 336; potassium carbonate in toluene; mineral oil T=60°C; P=760.051 Torr; 23 h;

diethyl ether

dianilunium sulphate T=180°C;

diethyl ether

1: SOCl2 2: diethyl ether View Scheme

2: SOCl2 3: diethyl ether View Scheme