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Showing 1 to 3 of 3 for “"Phospholane"”.
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Chiral phosphine synthesis by the application of directed metallation
… "SemiPHOS", containing both a chiral phospholane ring and an adjacent diphenylphosphino group. SemiPHOS has been obtained in optically pure forms by a stereoselective synthesis and, independently, by a resolution procedure on its racemate. The molecular design of SemiPHOS was devised …
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Taming reactive phosphorus intermediates with organic and inorganic carriers
… anti-7-phosphanorbornene, phosphaalkene and phospholane. The anthracene diphosphorus adduct P₂A₂ was synthesized from Me₂NPA, through isolated intermediates CIPA and [P₂A₂Cl][AlCl₄]. P₂A₂ was found to transfer P₂ efficiently to N-₃ CHD, 1,3-butadiene and (C₂H₄)Pt(PPh₃)₂ to form …
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Derivatisierungsreaktionen von Cinchona-Alkaloiden und eine Cinchona-Alkaloid-katalysierte asymmetrische Synthese von 2,5-Diarylphopholanen
… (Fiaud’s acid; 1-hydroxy-1r-oxo-2c,5t-diphenylphospholane). We have developed a nickel-catalyzed cross-coupling reaction of thiophene with aryl Grignard reagents to form (E,E)-1,4-diarylbutadienes. Trialkylphosphines as well as N-heterocyclic carbenes serve as ligands for nickel. Under these …