1: p-methoxybenzaldehyde tosyl hydrazone With potassium tert-butylate in toluene T=0 - 20°C; 1 h; 2: 3,5-dimethoxy-benzaldehyde With 5,10,15,20-tetraphenyl porphyrinato iron hydroxide; Aliquatreg; 336; phosphorous acid trimethyl ester in toluene T=40°C; Wittig olefination; 48 h;

tetra(n-butyl)ammonium hydroxide in tetrahydrofuran; methanol 1.5 h; Heating;

sodium perborate; 1,8-diazabicyclo[5.4.0]undec-7-ene 1.) THF, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given;

potassium tert-butylate 4 h; Heating;