作者:Vadim A Soloshonok、Dimitry V Avilov、Valery P Kukhar'、Luc Van Meervelt、Nikolai Mischenko
DOI:10.1016/s0040-4039(97)01054-x
日期:1997.7
subjected to kinetic and thermodynamic control. Thus, under kinetically controlled conditions high values of diastereo-selectivity, up to 94% de, allowing for an efficient asymmetric synthesis of (2S,3S)-3-trifluoromethylpyroglutamic acid, could be obtained, while the thermodynamically controlled stereoselectivity is rather modest (54–60% de).
所述的立体化学结果迈克尔4,4,4-三氟巴豆酸乙酯和镍(II)复合物中的的反应之间的席夫甘氨酸的碱与(小号) - ö - [ ñ - (Ñ -benzylprolyl)氨基]苯甲酮被发现进行动力学和热力学控制。因此,在动力学控制的条件下,可以获得高达94%de的高非对映选择性,从而可以有效地不对称合成(2 S,3 S)-3-三氟甲基焦谷氨酸,而热力学控制的立体选择性相当高。适中(54-60%de)。