Enantioselective Desymmetrization of Diphenylphosphinamides via (−)-Sparteine-Mediated <i>Ortho</i>-Lithiation. Synthesis of <i>P</i>-Chiral Ligands
作者:Cristinel Popovici、Pascual Oña-Burgos、Ignacio Fernández、Laura Roces、Santiago García-Granda、María José Iglesias、Fernando López Ortiz
DOI:10.1021/ol902545q
日期:2010.2.5
N-dialkyl-P,P-diphenylphosphinamides using [n-BuLi·(−)-sparteine] is described as an efficient method for the synthesis of P-chiral ortho-functionalized derivatives in high yields and ee’s from 45 to >99%. The method allows access to new enantiomerically pure P-chiralphosphine and diimine ligands.
描述使用[ n -BuLi·(-)-sparteine]对N-二烷基-P,P-二苯基次膦酰胺进行不对称邻位锂化是一种高效合成P-手性邻位官能化衍生物的有效方法,ee产自45到> 99%。该方法允许获得新的对映体纯的P-手性膦和二亚胺配体。
Electrophilic Fluorination of Secondary Phosphine Oxides and Its Application to P–O Bond Construction
A novel and efficient electrophilicfluorination of secondary phosphine oxides with Selectfluor has been achieved. This transformation provides direct access to phosphoric fluorides in up to 92% yield under mild conditions. In addition, P–O bond construction via a one-pot coupling process of secondary phosphine oxides with water or alcohols in the presence of Selectfluor leads to the formation of phosphinic
Copper mediated C(sp<sup>2</sup>)–H amination and hydroxylation of phosphinamides
作者:Shang-Zheng Sun、Ming Shang、Hui Xu、Tai-Jin Cheng、Ming-Hong Li、Hui-Xiong Dai
DOI:10.1039/c9cc08879b
日期:——
Copper mediated C(sp2)-Hamination and hydroxylation of arylphosphinic acid are accomplished by adopting phosphinamide as the directing group. This method is distinguished by its wide substrate scope and excellent functional group tolerance, thus allowing for the rapid preparation of organophosphorus compounds in organic synthesis.
Photoinduced reductive perfluoroalkylation of phosphine oxides: synthesis of P-perfluoroalkylated phosphines using TMDPO and perfluoroalkyl iodides
作者:Yuki Sato、Shin-ichi Kawaguchi、Akiya Ogawa
DOI:10.1039/c5cc03427b
日期:——
P-Perfluoroalkylphosphines are synthesized by photoreaction between TMDPO and perfluoroalkyl iodides, with the reduction of phosphine oxides.
通过TMDPO和全氟烷基碘化物之间的光反应合成了P-全氟烷基膦化合物,同时还还原了膦氧化物。
Cobalt-Catalyzed Diastereoselective [4+2] Annulation of Phosphinamides with Heterobicyclic Alkenes at Room Temperature
作者:Rajender Nallagonda、Neetipalli Thrimurtulu、Chandra M. R. Volla
DOI:10.1002/adsc.201701162
日期:2018.1.17
Cobalt‐catalyzed sp2 C−H bond functionalization of diarylphosphinamides with heterobicyclic alkenes was demonstrated at roomtemperature employing commercially available cobalt(II)‐salts. The effectiveness of this strategy was illustrated with the reaction of various 8‐aminoquinoline derived phosphinic amides and 7‐oxa/azabenzonorbornadienes. The reaction conditions exhibited excellent functional group tolerance