M. Makosza et K. Grela, PREPARATION OF ACTIVE ZINC BY REDUCTION OF ZINC-CHLORIDE WITH SODIUM IN LIQUID-AMMONIA AND ITS USE IN THE BARBIER REACTION, Tetrahedron letters, 36(50), 1995, pp. 9225-9226
Active dnc ponder produced by reduction of anhydrous dnc chloride with
solution of sodium in liquid ammonia exhibits high reactivity in the
Barbier type reaction both in THF and liquid ammonia solution.