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![Solid-phase Synthesis of [4.4] Spirocyclic Oximes](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F58508.jpg&w=3840&q=50)
Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
Photoredox-Enabled Dearomatization of Protected Anilines: Access to Cyclohexadienone Imines with Contiguous
Yunpeng Zhang1, Daoyi Yang1, Dengfu Lu1,2
1Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China.
Abstract:
A photoredox-enabled alkylative dearomatization of protected anilines is reported. Under Ir catalysis and light irradiation, an N-carbamoyl-protected aniline and an α-bromocarbonyl compound could be simultaneously activated, and the two resulting radical species then recombine with each other to afford a dearomatized cyclohexadienone imine as the major product. A series of such imines with contiguous quaternary carbon centers were prepared, which can be further converted into cyclohexadienones, cyclohexadienols, and cyclohexyl amines.
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