n-butyllithium in ethylene glycol dimethyl ether T=-78°C;

3-iodoprop-1-ene in ethylene glycol dimethyl ether under argon; tin-compound in DME cooled to -78 °C; nBuLi was added; quenched with allylhalide;; poured into NH4Cl-soln. and petroleum ether, shaked 1 min, organic layer sepd., washed (brine), dried (Na2SO4), filtered, concd. (vacuo); chromd. (silica gel; petroleum ether); NMR; IR; MAS;;

n-butyllithium Yield given. Multistep reaction;

n-butyllithium; (cyclopropyl)2ZrCl2 in tetrahydrofuran T=-78 - 20°C;