sodium; tert-butyl alcohol in diethyl ether 48 h; Heating;

1: 59 percent / Na, t-BuOH / diethyl ether / 48 h / Heating 2: 52 percent Spectr. / 2,4,6-triisopropylbenzenesulfonic acid hydrazide, K2CO3 / diethyl ether / 24 h / Heating View Scheme