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作者李莹,韩方外,徐子扬,王茹,严晨昕,欧尤静,卢倩,刘桂艳,曾永飞(2019)在《Synthesis, Crystal Structure and Catalytic Activity of a Pd-PEPPSI Complex Bearing Bromine Group》一文中研究指出:A new Pd-PEPPSI complex(2) with the bromo groups on the para-positions of N-aryl moieties of NHC has been synthesized and characterized by NMR and X-ray single-crystal diffraction. Complex 2 crystallizes in monoclinic, space group P21/c with a = 11.8790(8), b = 14.3038(10), c = 15.9905(11) ?, β = 101.291(2)°, V = 2664.4(3) ?3, Z = 4, Dc = 1.722 Mg/m3, μ = 3.913 mm-1, F(000) = 1352, the final R = 0.0682 and wR = 0.1914 for 15113 observed reflections(I > 2σ(I)), R(all data) = 0.0970, w R(all data) = 0.2115, completeness to theta of 25.00 is 100.0% and GOOF = 1.035. Influenced by the electron-withdrawing bromo groups, the Pd-PEPPSI complex(2) showed high catalytic activity for the Suzuki-Miyaura cross-coupling reactions of aryl chlorides and arylboronic acids with a low catalyst loading(0.05 mol%) at room temperature in air.
Abstract
A new Pd-PEPPSI complex(2) with the bromo groups on the para-positions of N-aryl moieties of NHC has been synthesized and characterized by NMR and X-ray single-crystal diffraction. Complex 2 crystallizes in monoclinic, space group P21/c with a = 11.8790(8), b = 14.3038(10), c = 15.9905(11) ?, β = 101.291(2)°, V = 2664.4(3) ?3, Z = 4, Dc = 1.722 Mg/m3, μ = 3.913 mm-1, F(000) = 1352, the final R = 0.0682 and wR = 0.1914 for 15113 observed reflections(I > 2σ(I)), R(all data) = 0.0970, w R(all data) = 0.2115, completeness to theta of 25.00 is 100.0% and GOOF = 1.035. Influenced by the electron-withdrawing bromo groups, the Pd-PEPPSI complex(2) showed high catalytic activity for the Suzuki-Miyaura cross-coupling reactions of aryl chlorides and arylboronic acids with a low catalyst loading(0.05 mol%) at room temperature in air.
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论文作者分别是来自Chinese Journal of Structural Chemistry的李莹,韩方外,徐子扬,王茹,严晨昕,欧尤静,卢倩,刘桂艳,曾永飞,发表于刊物Chinese Journal of Structural Chemistry2019年03期论文,是一篇关于,Chinese Journal of Structural Chemistry2019年03期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自Chinese Journal of Structural Chemistry2019年03期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。