title: Synthesis of novel boron chelate complexes and proposed mechanism of new rearrangement.
abstract: We synthesized novel boron chelate complexes by the reaction of pyrazoline derivatives and boron trifluoride diethyl etherate followed by a new rearrangement. The structures of the compounds were characterized by IR, NMR and HRMS, especially, a typical compound 3c was confirmed by X-ray single crystal analysis. We proposed a mechanism of the rearrangement. Moreover, the absorption and fluorescence spectroscopy of these compounds were measured.
authors.affiliation: Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Rui-Zhe
authors.initials: RZ
authors.lastname: Zhang
authors.affiliation: Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Feng
authors.affiliation: Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
authors.forename: Sheng-Qing
authors.initials: SQ
authors.lastname: Wang
authors.affiliation: Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China. Electronic address: jintliu@sdu.edu.cn.
authors.forename: Jin-Ting
authors.initials: JT
authors.lastname: Liu
authors.affiliation: Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China. Electronic address: bxzhao@sdu.edu.cn.
authors.forename: Bao-Xiang
authors.initials: BX
authors.lastname: Zhao
mesh_terms: D001895:Boron / Q000737:chemistry*; D002614:Chelating Agents / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008752:Methylene Chloride / Q000737:chemistry; D008958:Models, Molecular; D008968:Molecular Conformation; D012997:Solvents / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: D002614:Chelating Agents; D056831:Coordination Complexes; D012997:Solvents; D008752:Methylene Chloride; D001895:Boron
keywords: Boron chelate complexes; Pyrazoline; Rearrangement; Single crystal