Amberlyst 15 12 h; Reflux;

potassium hydroxide in dimethyl sulfoxide

1: LiAlH4 / tetrahydrofuran 2: KOH / dimethylsulfoxide View Scheme

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / -78 °C / |Inert atmosphere 1.2: 2 h / 0 °C / |Inert atmosphere; |Schlenk technique 2.1: sodium hydride / tetrahydrofuran / 2 h / |Inert atmosphere; |Schlenk technique View Scheme

Irradiation; Further byproducts given;