in tetrahydrofuran stirred overnight at room temperature, N2; extn. (boiling pentane), chromy. (Kiselgel 40 column, pentane), crystn.from hot ethanol; elem. anal.; NMR;

1,4-diaza-bicyclo[2.2.2]octane; iron(III) chloride in diethyl ether Grignard cross-coupling reaction; 0.5 h; Heating;

1: alcohol 2: methanolic KOH-solution 3: beim Schmelzen View Scheme