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Enantioselective Alkylation of N‐Arylhydrazones Derived from α‐Keto Esters and Isatin Derivatives through Asymmetric Phase‐Transfer Catalysis
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Dr. Qi‐Kai Kang Dr. Sermadurai Selvakumar Prof. Dr. Natarajan Arumugam Prof. Dr. Abdulrahman I. Almansour Prof. Dr. Raju Suresh Kumar Prof. Dr. Keiji Maruoka 《化学:亚洲杂志》2018,13(14):1780-1783
The phase‐transfer‐catalyzed asymmetric alkylation reactions of N‐arylhydrazones derived from α‐keto‐esters and isatin derivatives afford enantioenriched azo compounds that bear a tetra‐substituted carbon stereocenter in good yields with high chemo‐ and enantioselectivity. The alkylation products can be readily converted into chiral amino esters, hydrazine derivatives, and aza‐β‐lactams without loss of enantiopurity. 相似文献
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