Application of the molybdenum catalysed hydrostannation towards propargylic esters of amino acids allows for the regioselective synthesis of α-stannylated allylic esters, suitable substrates for chelate Claisen rearrangements. α-Stannylated allylic carbonates can be subjected to palladium catalysed allylic alkylations using chelated amino acid ester enolates as nucleophiles. The stannylated amino acids obtained can be further modified via cross-coupling reactions.
将
钼催化的氢化
锡化应用于
氨基酸的炔
丙酯可以实现α-甲
锡烷基化烯
丙酯的区域选择性合成,这是螯合克莱森重排的合适底物。 α-甲
锡烷基化烯
丙基碳酸酯可以使用螯合
氨基酸酯烯醇化物作为亲核试剂进行
钯催化的烯丙基烷基化。获得的甲
锡烷基化
氨基酸可以通过交叉偶联反应进一步修饰。