Regio‐ and Enantioselective Rhodium‐Catalyzed Addition of 1,3‐Diketones to Allenes: Construction of Asymmetric Tertiary and Quaternary All Carbon Centers | Zendy

Beck Thorsten M. | Zendy; Breit Bernhard | Zendy

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Regio‐ and Enantioselective Rhodium‐Catalyzed Addition of 1,3‐Diketones to Allenes: Construction of Asymmetric Tertiary and Quaternary All Carbon Centers

Author(s) -

Beck Thorsten M.,

Breit Bernhard

Publication year - 2017

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201610577

Subject(s) - enantioselective synthesis , rhodium , catalysis , chemistry , quaternary carbon , carbon fibers , organic chemistry , medicinal chemistry , mathematics , algorithm , composite number

An unprecedented highly regio‐ and enantioselective rhodium‐catalyzed addition of 1,3‐diketones to terminal and 1,1‐disubstituted allenes furnishing asymmetric tertiary and quaternary all‐carbon centers is reported. By applying a Rh I /phosphoramidite/TFA catalytic system under mild conditions, the desired chiral branched α‐allylated 1,3‐diketones could be obtained in good to excellent yields, with perfect regioselectivity and in high enantioselectivity. The reaction shows a broad functional‐group tolerance on both reaction partners highlighting its synthetic potential.

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