1: Horner-Emmons reagent With sodium hydride in tetrahydrofuran; mineral oil T=0°C; 0.5 h; Inert atmosphere; 2: isobutyraldehyde in tetrahydrofuran; mineral oil T=20°C; 2.5 h; Inert atmosphere;

1: 100 percent / NaI / acetone / 0.17 h 2: diethyl ether 3: 1.) NaH / 1.) THF, 15 min, 2.) RT, 1.5 h View Scheme

1: diethyl ether 2: 1.) NaH / 1.) THF, 15 min, 2.) RT, 1.5 h View Scheme