作者:Alexandre Picot、François P Gabbaı̈
DOI:10.1016/s0040-4039(01)02087-1
日期:2002.1
6-bis(tosyloxymethyl)pyridazine (1) with two equivalents of (1R-2S)-norephedrine or (1S-2R)-1-amino-2-indanol leads to the formation of C2-chiral dinucleating ligands containing a 3,6-disubstituted pyridazine core flanked by aminoalcohol pendant arms, namely 3,6-bis((1R-2S)-(2-hydroxy-1-methyl-2-phenyl-ethyl)aminomethyl)pyridazine (2) and 3,6-bis((1S-2R)-(2-hydroxy-indan-1-yl)aminomethyl)pyridazine (3). As shown
3,6-双(甲苯磺酰氧基甲基)哒嗪(1)与两个当量的(1 R -2 S)-去氧麻黄碱或(1 S -2 R)-1-氨基-2-茚满醇的反应导致C的形成包含一个3,6-二取代的哒嗪核并侧接氨基醇侧链的2-手性双核配体,即3,6-双((1 R -2 S)-(2-羟基-1-甲基-2-苯基-乙基)氨基甲基)哒嗪(2)和3,6-双((1 S -2 R)-(2-羟基-茚满-1-基)氨基甲基)哒嗪(3)。如光谱滴定实验以及ESI / MS所示,配体23和3结合铜(II)阳离子形成双核络合物。