Issue 67, 2016

Transformation of masked benzyl alcohols to o-aminobenzaldehydes through C–H activation: a facile approach to quinazolines

Abstract

Direct transformation of a directing group to important synthetic units would provide a high atom efficiency synthetic approach in synthetic chemistry. Herein, a convenient protocol for the synthesis of o-aminobenzaldehyde and benzoxazole derivatives from benzyl alcohols has been developed by employing (N,N-dimethyl)oxamoyl amide as a directing group in a palladium-catalyzed intramolecular amination. Furthermore, the attached directing center may not only be transformed into the product, but may also be further applied to generate synthetically important quinazoline and quinoline units. Finally, a high atom efficiency one-pot, two-step approach to form quinazolines from benzyl alcohol derivatives has been achieved in good yields, thus demonstrating its high utility.

Graphical abstract: Transformation of masked benzyl alcohols to o-aminobenzaldehydes through C–H activation: a facile approach to quinazolines

Supplementary files

Article information

Article type
Communication
Submitted
05 юли 2016
Accepted
21 юли 2016
First published
21 юли 2016

Chem. Commun., 2016,52, 10241-10244

Transformation of masked benzyl alcohols to o-aminobenzaldehydes through C–H activation: a facile approach to quinazolines

X. Chen, J. Han, Y. Zhu, C. Yuan, J. Zhang and Y. Zhao, Chem. Commun., 2016, 52, 10241 DOI: 10.1039/C6CC05560E

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