P(O)R2-directed Pd-catalyzed C–H functionalization of biaryl derivatives to synthesize chiral phosphorous ligands
نویسندگان
چکیده
منابع مشابه
P(O)R2-directed Pd-catalyzed C–H functionalization of biaryl derivatives to synthesize chiral phosphorous ligands
Chiral phosphorus ligands have been widely used in transition metal-catalyzed asymmetric reactions. Herein, we report a new synthesis approach of chiral biaryls containing a phosphorus moiety using P(O)R2-directed Pd-catalyzed C-H activation; the functionalized products are produced with good enantioselectivity.
متن کاملBiaryl phosphane ligands in palladium-catalyzed amination.
Palladium-catalyzed amination reactions of aryl halides have undergone rapid development in the last 12 years, largely driven by the implementation of new classes of ligands. Biaryl phosphanes have proven to provide especially active catalysts in this context. This Review discusses the application of these catalysts in C-N cross-coupling reactions in the synthesis of heterocycles and pharmaceut...
متن کاملNew chiral P-N ligands for the regio- and stereoselective Pd-catalyzed dimerization of styrene.
Two new chiral, enantiomerically pure, hybrid P-N ligands, namely (2R,5S)-2-phenyl-3-(2-pyridyl)-1,3-diaza-2-phosphanicyclo[3,3,0]octan-4-one (1) and (2R,5S)-2-phenyl-3-(2-pyridyl)-1,3-diaza-2-phosphanicyclo[3,3,0]octane (2), have been synthesized starting from L-proline. The two ligands differ in the presence or not of a carbonyl group in the diazaphosphane ring. Their coordination chemistry t...
متن کاملAsymmetric synthesis of axially chiral anilides by Pd-catalyzed allylic substitutions with P/olefin ligands.
As an attractive class of non-biaryl atropisomeric compounds, C-N axially chiral anilides have received considerable attention, and several methods have been successfully developed for their synthesis. Pd-catalyzed asymmetric allylic amination was proved to be an effective approach for the chiral anilide synthesis, although only moderate enantioselectivity and relatively narrow substrate scope ...
متن کاملRecent trends in Pd-catalyzed remote functionalization of carbonyl compounds.
Recent advances in the palladium-catalyzed remote functionalization of carbonyl derivatives are highlighted in this review. The structure of the article is based on the three strategies that have emerged in recent years as the most viable tactics to construct C(sp(3))-C, C(sp(3))-N or C(sp(3))-O bonds at a distance of at least three carbon atoms from the carbonyl functionality. The specific asp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Beilstein Journal of Organic Chemistry
سال: 2014
ISSN: 1860-5397
DOI: 10.3762/bjoc.10.215