Organocatalytic Asymmetric Dearomatization Reaction for the Construction of Axially Chiral Urazole Embedded Naphthalenones
作者:Subhas Pan、Chandrakanta Parida、Siddharth K. Dave、Kousik Das
DOI:10.1002/adsc.202300080
日期:——
Herein we disclose a catalytic asymmetric dearomatization reaction of β-naphthols with 4-aryl-1,2,4-triazole-3,5-diones. A chiral phosphoric acid with spiro motif was found to be effective for this reaction. The chiral urazole embedded naphthalenones having both axial and central chirality were obtained in good to high yields (70–85%) with high diastereo- and enantioselectivities (>20:1, 8–96% ees)
Non-halogenated naphthol compounds, antimicrobial compositions containing the same, and methods of using the same
申请人:——
公开号:US20020110530A1
公开(公告)日:2002-08-15
An antimicrobial compound, composition containing such compound, and method of use of the same for reducing the presence of microorganism on a substrate or in a fluid environment comprising an antimicrobial effective carrier and one or more essential antimicrobial compounds including non-halogenated naphthol compounds.
Iron-Catalyzed Dioxygen-Driven C–C Bond Formation: Oxidative Dearomatization of 2-Naphthols with Construction of a Chiral Quaternary Stereocenter
作者:Takuya Oguma、Tsutomu Katsuki
DOI:10.1021/ja310203c
日期:2012.12.12
Iron(salan) complex 1 was found to catalyze the oxidative dearomatization of 1-substituted 2-naphthols with the formation of an all-carbon quaternary stereocenter in air in the presence of nitroalkanes, to afford the corresponding cyclic enones with high enantioselectivity of 88-96% ee.
Alberti, Justus Liebigs Annalen der Chemie, 1926, vol. 450, p. 316