sodium acetate 24 h; Heating;

1: 1.) n-BuLi / 1.) THF, 0 deg C, 12 h, 2.) 0 deg C, 1 h; room temperature, 2 h 2: 65 percent / acetonitrile / 1.) room temperature, 1 h, 2.) reflux, 1 h 3: 1.) t-Bu4NF / 2.) palladium charcoal / 1.) MeCN, room temperature, 1 h, 2.) tetralin, reflux, 26 h View Scheme

in acetonitrile 1 h; Heating; Yield given;