aluminum oxide; sodium tetrahydroborate in methanol 0.0333333 h; microwave irradiation;

1: 4-(3,4-dimethoxyphenyl)-3-buten-2-one With sodium hexamethyldisilazane in tetrahydrofuran T=-78°C; 0.5 h; 2: 3,4-dimethoxycinnamic acid chloride in tetrahydrofuran T=-78 - 20°C; 12 h;

1.1: 84 percent / H2 / Pd/C / ethanol 2.1: LDA / tetrahydrofuran / 0.33 h / -78 °C 2.2: tetrahydrofuran / 3 h / -78 - 20 °C 3.1: 74 percent / 1,4-dicyanonaphthalene / acetonitrile; H2O / 4 h / Irradiation View Scheme

methanol; formic acid; water; silica gel; palladium dichloride 0.816667 h; Irradiationmicrowave;