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DOI: 10.1039/D0GC90141E (Correction) Green Chem., 2021, 23, 612-612

Correction: Pd(II)-Catalyzed [4 + 1 + 1] cycloaddition of simple o-aminobenzoic acids, CO and amines: direct and versatile synthesis of diverse N-substituted quinazoline-2,4(1H,3H)-diones

Xiaopeng Zhang *, Qianqian Ding , Jinjun Wang , Jingyi Yang , Xuesen Fan and Guisheng Zhang *
Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China. E-mail: 031128@htu.edu.cn; zgs@htu.cn

Received 24th December 2020 , Accepted 24th December 2020

First published on 8th January 2021

Abstract

Correction for ‘Pd(II)-Catalyzed [4 + 1 + 1] cycloaddition of simple o-aminobenzoic acids, CO and amines: direct and versatile synthesis of diverse N-substituted quinazoline-2,4(1H,3H)-diones’ by Xiaopeng Zhang et al., Green Chem., 2021, DOI: 10.1039/d0gc03254a.

A typographical error occurred within Table 1, with temperature values incorrectly given the entry in the additive column. The following table contains the correct information and replaces the version of Table 1 in the originally published manuscript.
Table 1 Optimization of the reaction conditionsa

image file: d0gc90141e-u1.tif
Entry T (°C) Additive Oxidant Solvent Y (%)
a Reaction conditions: 1b (1.0 mmol), 2a (3.0 mmol), KI (0.2 mmol), Cu(OAc)2 (1.0 mmol), solvent (10 mL); 2a (and 1.0 mmol AcOH) was added 6 h later. b Isolated yields. c CO[thin space (1/6-em)]:[thin space (1/6-em)]O2 = 5[thin space (1/6-em)]:[thin space (1/6-em)]1. d The mixture of 2a and AcOH (1.0 mmol) was added dropwise.
1c 30 KI/AcOH Cu(OAc)2/O2 CH3CN 53
2c 40 KI/AcOH Cu(OAc)2/O2 CH3CN 71
3c 60 KI/AcOH Cu(OAc)2/O2 CH3CN 81
4c 70 KI/AcOH Cu(OAc)2/O2 CH3CN 80
5d 60 KI/AcOH Cu(OAc)2/O2 CH3CN 55
6 60 KI/AcOH Cu(OAc)2 CH3CN 85
7 60 KI Cu(OAc)2 CH3CN 85
8 60 KI Cu(OAc)2 Toluene Trace
9 60 KI Cu(OAc)2 DMSO ND
10 60 KI Cu(OAc)2 DMF ND
11 60 KI Cu(OAc)2 1,4-Dioxane ND

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

This journal is © The Royal Society of Chemistry 2021
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