1: 2-(1'-Naphthyl)-2-methylpropionitrile With Li-naphthalenide in tetrahydrofuran T=-40°C; 0.666667 h; Inert atmosphere; 2: 1-bromo-butane in tetrahydrofuran T=-40 - 20°C; 16 h; Inert atmosphere;

1: DIBAL 2: 1.) NaH, DMSO / 1.) r.t., 15 min; 2.) DMSO, r.t., 2.5 h 3: 2-methyl-propan-2-ol / 2.03 h / Irradiation 4: 2-methyl-propan-2-ol / 2 h / Irradiation View Scheme

1: DIBAL 2: 1.) NaH, DMSO / 1.) r.t., 15 min; 2.) DMSO, r.t., 2.5 h 3: 2-methyl-propan-2-ol / 2.03 h / Irradiation View Scheme