Direct Asymmetric Amination Of Α Branched Cyclic 2020
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Here we report the direct asymmetric amination of α-substituted cyclic ketones catalyzed by a chiral phosphoric acid, yielding products with a N-containing quaternary stereocenter in high yields and excellent enantioselectivities. Kinetic resolution of the starting ketone was also found to occur on some of the substrates under milder. 11/03/2015 · Here we report the direct asymmetric amination of α-substituted cyclic ketones catalyzed by a chiral phosphoric acid, yielding products with a N-containing quaternary stereocenter in high yields and excellent enantioselectivities. 08/01/2015 · Here we report the direct asymmetric amination of α-substituted cyclic ketones catalyzed by a chiral phosphoric acid, yielding products with a N-containing quaternary stereocenter in high yields and excellent enantioselectivities. Kinetic resolution of the starting ketone was also found to occur on some of the substrates under. Xiaoyu Yang and F. Dean Toste, Direct Asymmetric Amination of α-Branched Cyclic Ketones Catalyzed by a Chiral Phosphoric Acid, Journal of the American Chemical Society, 10.1021/jacs.5b00229, 137, 9, 3205-3208, 2015. Direct Asymmetric Amination of α‑Branched Cyclic Ketones Catalyzed by a Chiral Phosphoric Acid Xiaoyu Yang and F. Dean Toste Department of Chemistry, University of California, Berkeley, California 94720, United States.

ChemInform Abstract: Direct Asymmetric Amination of α‐Branched Cyclic Ketones Catalyzed by a Chiral Phosphoric Acid. Xiaoyu Yang Dep. Chem., Univ. Calif., Berkeley, CA 94720, USA. cyclic ketoneswerelimited to2-methyl and 2-ethylsubstitution, which may be attributed to the steric difficulties for formation of the enamine intermediate. Very recently, we reported on the direct asymmetric ami-nation of a-branched cyclic ketones catalyzed by a chiral phosphoric acid to generate N-containing quaternary stereo 19/01/2016 · Very recently, we reported on the direct asymmetric amination of α-branched cyclic ketones catalyzed by a chiral phosphoric acid to generate N-containing quaternary stereocenters from unactivated cyclic ketones. 13 With our continuing interest in asymmetric functionalization of α-branched cyclic ketones, 13,14 we turned our attention to.

Download Citation ChemInform Abstract: Direct Asymmetric Amination of α‐Branched Cyclic Ketones Catalyzed by a Chiral Phosphoric Acid. Here we report the direct asymmetric amination of α-substituted cyclic ketones catalyzed by a chiral phosphoric acid, yielding products with a. Find, read and cite all the research you need on. Learn more about these metrics Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 both PDF and HTML across all institutions and indiv. Here we report the direct asymmetric amination of α-substituted cyclic ketones catalyzed by a chiral phosphoric acid, yielding products with a N-containing quaternary stereocenter in high yields and excellent enantioselectivities.

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