... yield is about 90% (dihydrophenylglycine:80%, phenylglycine:20%, obtained by NMR) References 1 Organic reactions in liquid ammonia,H.Smith,Interscience,Wiley,New-York, 1960. 2 EM Kaiser,Synthesis 1972, 391. 3 J .Chaussard, C. Combellas, A. Thiebault, french patent 86-12746 (1986). 4 G.Wellman,W. Mendelson, B.Lam, EL Anderson, CE Berhoff,C.Ladd,Synthesis 1984, 356. (Received in France 1 December 1986)