The nickel-catalyzed cross-coupling of bromodifluoromethylphosphonates with arylboron reagents was developed with a 1,10-phenanthroline-type ligand. In this process, functionalized and heterocycle-containing boroxines were found to be suitable partners, and the catalytic modification of biologically active molecules, such as fenofibrate and indomethacin, was also successfully achieved. Furthermore
Facile syntheses of aryldifluorophosphonate building blocks
作者:G.Stuart Cockerill、Howard J. Easterfield、Jonathan M. Percy
DOI:10.1016/s0040-4039(99)00266-x
日期:1999.3
The copper-catalysed zinc phosphonate chemistry described by Yokomatsu and Shibuya can be used directly in the synthesis of phosphotyrosine analogue F(2)Pmp, and in entering the classical organometallic coupling repertoire via Stille and Suzuki-Miyaura couplings. Herein, we report a streamlined synthesis of F(2)Pmp, and of a pivotal triflate, which undergoes a range of palladium-catalysed couplings with aryl and heteroaryl components. (C) 1999 Elsevier Science Ltd. All rights reserved.