β-Azolyl propanoic acid derivatives are frequently found in biologically active molecules and pharmaceuticals. Here, we report the oxidative heteroarylation of unactivated C(sp)-H bonds with azole C(sp)-H bonds via copper or nickel catalysis with the aid of removable bidentate auxiliary, which provides a rapid pathway to β-azolyl propanoic acid derivatives. A variety of azoles such as oxazole, benzoxazole, thiazole, benzothiazoles, benzimidazole, purine, and even [1,2,4]triazolo[1,5-a]pyrimidine could be engaged in this protocol.
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http://dx.doi.org/10.1021/acs.orglett.7b02265 | DOI Listing |
Chem Commun (Camb)
December 2021
Department of Chemistry, Fudan University, 2005 Songhu Rd, Shanghai, 200438, China.
Chem Rev
July 2017
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, China.
Acta Crystallogr C
December 2013
Department of Material Science and Chemistry, Wakayama University, Sakaedani, Wakayama 640-8510, Japan.
The title compounds, C14H9NOS, (1), and C14H9NO2S, (2), are oxidation products of the parent compound 10-ethynyl-10H-phenothiazine. They differ with respect to transannular interactions, the intramolecular S···N contact being shorter in (2). Intermolecular Csp-H···O hydrogen bonds were detected in both crystals, and (1) was found to form stronger hydrogen bonds.
View Article and Find Full Text PDFThe direct enantiomeric resolution of non-K region trans-1,2-dihydrodiol, 1,2,3,4-tetrahydro-trans-1,2-diol, trans-3,4-dihydrodiol and 1,2,3,4-tetrahydro-trans-3,4-diol, K region trans- and cis-5,6-dihydrodiols and their monomethyl ethers of chrysene was studied by chiral stationary phase high-performance liquid chromatography (CSP-h.p.l.
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