The Boc-derivative of (4-pinacolylborono)phenylalanine ethyl eater (6) or the corresponding boronic acid 8 undergo Suzuki-Miyaura coupling reactions with aromatic chlorides in the presence of catalytic amounts of PdCl2(PCy3)(2) or NiCl2(dppf), respectively, to produce 4-substituted phenylalanine derivatives. (C) 1998 Elsevier Science Ltd. All rights reserved.
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Williams R. M., 1989, Synthesis of Optically Active AE-Amino Acids