Synthesis, reactivity and stereochemistry of new phosphorus heterocycles with 5- or 6-membered rings
作者:Henri-Jean Cristau、Jean-Luc Pirat、David Virieux、Jérôme Monbrun、Ciptadi Ciptadi、Yves-Alain Bekro
DOI:10.1016/j.jorganchem.2004.11.035
日期:2005.5
Syntheses of novel phosphorus heterocycles containing α-amino or α-hydroxyphosphonic or phosphinic acids motifs are developed. 2,3-dihydro-1,3-oxaphospholes (1) and 1,4,2-oxazaphosphinanes (2) exhibit a reactive part, respectively the enolether moiety and the P–H bond, which allows various structural modifications: (i) for 1a, by introduction of amino substituents, (ii) for 2a, by hydroxy- or aminoalkylation
开发了包含α-氨基或α-羟基膦酸或次膦酸基序的新型磷杂环的合成。2,3-二氢-1,3-氧杂磷腈(1)和1,4,2-氧杂氮杂膦(2)具有反应性,分别是烯醇醚部分和PH键,可进行各种结构修饰:对于1a,通过引入氨基取代基,(ii)对于2a,通过羟基或氨基烷基化,通过迈克尔加成或通过P-芳基化。这些反应通常表现出良好的或什至优异的动力学非对映选择性,这通常可以通过过渡态的分子模型来预测。