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Your search keyword '"KA-HO NG"' showing total 4 results
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4 results on '"KA-HO NG"'

1. ChemInform Abstract: [Cp*RhCl2]2-Catalyzed ortho-C-H Bond Amination of Acetophenone o-Methyloximes with Primary N-Chloroalkylamines: Convenient Synthesis of N-alkyl-2-acylanilines

Author

Wing-Yiu Yu, Zhongyuan Zhou, and Ka-Ho Ng

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, Primary (chemistry), C h bond, chemistry, General Medicine, Medicinal chemistry, Amination, Alkyl, Catalysis, Acetophenone
Abstract

The corresponding N-chloroalkylamines (II) and (IV) are prepared in situ by reaction of the primary amines with N-chlorosuccinimide.

Published
2013

2. ChemInform Abstract: A Convenient Synthesis of Anthranilic Acids by Pd-Catalyzed Direct Intermolecular ortho-C-H Amidation of Benzoic Acids

Author

Ka-Ho Ng, Fo-Ning Ng, and Wing-Yiu Yu

Subjects
inorganic chemicals, integumentary system, Chemistry, organic chemicals, Nitrene, Intermolecular force, General Medicine, Medicinal chemistry, Catalysis
Abstract

An efficient method for synthesis of anthranilic acids by Pd-catalyzed ortho-C–H amidation of benzoic acids is disclosed. The amidation is proposed to proceed by carboxylate-assisted ortho-C–H palladation to form an arylpalladium(II) complex, followed by nitrene insertion to the Pd–C bond.

Published
2013

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