methanol; potassium carbonate T=20°C;

ammonia T=230°C;

n-butyllithium; bis(trimethylsilyl)-peroxide; water; acetic acid; diisopropylamine 1a.) THF, -20 deg C, 1.5h, 1b.) 25 deg C, 12h, 2.) CHCl3, methanol, 25 deg C, 5h; Yield given. Multistep reaction;

T=210°C;

chromic acid in acetone T=20 - 25°C; 0.25 h;