Copper‐Catalyzed Tandem Cyclization Approach to N, O‐Chelated Boron Difluoride Complexes. Issue 4 (27th March 2023)

• Record Type: Journal Article
• Authors: Cheng, Zemin; Xu, Yue; Zheng, Tao; Yang, Yang; Tang, Feng; Gu, Linghui; Ma, Wenbo
• Is Part Of: Asian journal of organic chemistry. Volume 12:Issue 4(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-03-27
• Subjects: acyloxylation -- C−H activation -- cyclization -- copper-catalysis -- fluorescence; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; 547.005
• DOI: 10.1002/ajoc.202300024
• Languages: English
• ISSNs: 2193-5807

Abstract

Abstract: A strategy for synthesizing N, O ‐chelated boron difluoride complexes via copper‐catalyzed tandem cyclization of readily available 2‐aryl pyridines has been developed. This reaction tolerates a wide range of functional groups, providing the corresponding products in 43–91% yield. Furthermore, the photophysical properties were investigated by measuring the UV/Vis absorption and fluorescence spectra of several product derivatives. Abstract : An efficient copper ‐catalyzed tandem cyclization of readily available substituted 2‐arylpyridine with Cu(BF4 )2 .6H2 O have been developed to afford N, O ‐chelated boron difluoride complexes in good yields with excellent regioselectivity.