Combined application of organozinc chemistry and one-pot hydroboration–Suzuki coupling to the synthesis of amino acids
作者:Arantxa Rodríguez、David D. Miller、Richard F. W. Jackson
DOI:10.1039/b300536d
日期:2003.3.13
Hydroboration using 9-BBN-H of the protected enantiomerically pure but-3-enylglycine derivative 11, prepared by copper-catalysed allylation of the serine-derived organozinc reagent 1, followed by Suzuki coupling of the derived borane with a variety of aromatic halides, 2-bromopyridine and 2-bromopropene gives the protected amino acids 14aâl and 15. This method augments our previous methods for the synthesis of phenylalanine homologues.
使用9-BBN-H对保护的手性纯的丁-3-烯基甘氨酸衍生物11进行氢硼化,该衍生物是通过铜催化的烯丙基化反应得到的,反应中使用了源自丝氨酸的有机锌试剂1,之后与多种芳香卤化物(如2-溴吡啶和2-溴丙烯)进行铃木偶联反应,得到保护的氨基酸14a-l和15。这种方法增强了我们之前合成苯丙氨酸同源物的策略。