作者:Fanny Roussi、Ariane Chauveau、Martine Bonin、Laurent Micouin、Henri-Philippe Husson
DOI:10.1055/s-2000-6311
日期:——
(5R)-5-Phenyl[1,3,4]oxadiazinan-2-one (6) is an easily available building block and acts as a chiral non-racemic precursor for azomethine imines. The ylid can be formed regioselectively with various aldehydes and reacts in an efficient manner with a wide range of dipolarophiles. The regio- and diastereoselectivity of the cycloadditions have been fully investigated and can lead, in the best cases, to the creation of three contiguous asymmetric centers in a single step, with complete control of relative and absolute configurations.
(5R)-5-苯基[1,3,4]恶二嗪-2-酮(6)是一种易于获得的结构单元,可作为偶氮亚胺的手性非外显前体。该酰基可与各种醛发生区域选择性反应,并能与多种双极性化合物发生高效反应。我们已经对环化反应的区域和非对映选择性进行了充分研究,在最佳情况下,可以在一个步骤中生成三个连续的不对称中心,并完全控制相对和绝对构型。