Hydrophosphanation of Phenolic Aldehydes as Facile Synthetic Approach to Catechol‐Functionalized Phosphane Oxides and Phosphanes
作者:Samir Chikkali、Dietrich Gudat
DOI:10.1002/ejic.200600330
日期:2006.8
facile rearrangement of the initial products yields isomeric phosphane oxides which react with MeI and excess LiAlH4 via deoxygenation to give the corresponding phosphanes. Phosphane oxides and phosphanes were isolated and characterized by analytical and spectroscopic data. The reactions described represent an improved synthesis for phosphanes with phenol and catechol functionalities that are useful for
二苯基膦与单羟基苯甲醛和二羟基苯甲醛的反应产生作为初始产物的 α-膦酰基甲醇,根据 NMR 研究,它与溶液中的起始材料处于动态平衡,但在固态下稳定。初始产物的轻松重排产生异构磷烷氧化物,其通过脱氧与 MeI 和过量 LiAlH4 反应得到相应的磷烷。通过分析和光谱数据分离和表征磷烷氧化物和磷烷。所描述的反应代表了具有苯酚和邻苯二酚官能团的膦的改进合成,可用作配体或超分子结构单元。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)