triethylamine in dichloromethane 24 h; Heating;

pyridine in dichloromethane T=-50 - -20°C;

diethyl ether; toluene

Multistep reaction. Title compound not separated from byproducts.;

Multistep reaction. Title compound not separated from byproducts.;

trichlorophosphate in acetonitrile 20 h; Heating;

1: N,N-diisopropyl ethylcarbamate With N,N,N',N,-tetramethylethylenediamine; sec.-butyllithium in diethyl ether; cyclohexane T=-78°C; 5 h; 2: 4,4,5,5-tetramethyl-2-phenyl-[1,3,2]-dioxaborolane in diethyl ether; cyclohexane T=-78 - 20°C; Further stages.;