作者:Nicolas De Rycke、Jérôme Marrot、François Couty、Olivier R. P. David
DOI:10.1002/ejoc.201001623
日期:2011.4
moiety is attached to a [2.2]paracyclophane skeleton, giving a catalyst with intrinsic planar chirality. Their synthesis is described starting from aminoparacyclophane 5 in four steps. In the course of this preparation, an unprecedented rearrangement involving a C-C bond insertion was observed, leading to an unexpected quinolone-phenyl[2.2]cyclophane (8). The target catalyst 16 was obtained in enantio-pure
描述了衍生自 4-(二甲氨基) 吡啶 (DMAP) 的新型亲核催化剂家族。氨基吡啶部分连接到 [2.2] 对环芳烷骨架上,提供具有固有平面手性的催化剂。它们的合成被描述为从氨基对环烷 5 开始分四步进行。在此制备过程中,观察到了前所未有的涉及 CC 键插入的重排,导致了意想不到的喹诺酮-苯基 [2.2] 环烷 (8)。通过与手性仲胺形成非对映异构体,得到对映纯形式的目标催化剂16,允许简单的色谱分离。还进行了初步催化研究。