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Your search keyword '"Huowang He"' showing total 2 results
Start Over Author "Huowang He" Topic organic chemistry
2 results on '"Huowang He"'

1. Regioselective Carbon‐Halogen Bond Formation in the Reaction of Ag(III) N ‐Confused Porphyrin Complex with HCl or HBr

Author

Huowang He, Atsuhiro Osuka, Hua-Wei Jiang, Yihuan Zhang, Idrees Sumra, Jin-Hong Lin, Zhuo Zeng, Fei Hao, and Majeed Irfan

Subjects
chemistry.chemical_compound, Halogen bond, Chemistry, Organic Chemistry, chemistry.chemical_element, Regioselectivity, Physical and Theoretical Chemistry, Porphyrin, Medicinal chemistry, Carbon, Reductive elimination
Published
2021
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2. Formation of Stable Ni III N‐Confused Porphyrins Aided by a 3‐Ethoxy Group

Author

Idrees Sumra, Yihuan Zhang, Daiki Shimizu, Atsuhiro Osuka, Zongren Ye, Zhuofeng Ke, Ling Xu, Yingyu Zeng, Zhengyu Liang, Huowang He, and Hua-Wei Jiang

Subjects
Ethanol, Metalation, Organic Chemistry, chemistry.chemical_element, General Chemistry, Porphyrin, Catalysis, law.invention, chemistry.chemical_compound, Paramagnetism, Nickel, Crystallography, chemistry, law, Alkoxy group, Electron paramagnetic resonance
Abstract

We report the synthesis, characterization, and reactivities of two stable NiIII N-confused porphyrin (NCP) complexes. Metalation of 3-OEt NCP 1 with NiCl2 ⋅ 6H2 O in CHCl3 /EtOH gave 3-OEt NiII NCP 3 initially, which was easily oxidized in air to form the NiIII complex of NCP inner C-oxide 4. Bis-ethoxy-modified NiIII complex 5 was synthesized by oxidation of 3 with PIFA in ethanol and CHCl3 . The structures of 4 and 5 were determined by single-crystal X-ray diffraction analysis. An unusually long NiIII -C bond (2.170(9) A) was observed in 4. The g-factor (g>2.1) observed in the EPR spectra of 4 and 5 further confirmed that they are paramagnetic NiIII complexes. Comparative experiments showed that the 3-ethoxy group plays an important role in the formation of 4 and 5. Reduction of 4 and 5 with NaBH4 regenerated complex 3.

Published
2021
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