Corrigendum
Corrigendum to “Synthesis of Kojic Ester Derivatives as Potential Antibacterial Agent”
Carolynne Zie Wei Sie , Zainab Ngaini , Nurashikin Suhaili, and Eswaran Madiahlagan
Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia Correspondence should be addressed to Zainab Ngaini; [email protected]
Received 5 August 2019; Accepted 11 August 2019; Published 7 October 2019
Copyright © 2019 Carolynne Zie Wei Sie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In the article titled “Synthesis of Kojic Ester Derivatives as Potential Antibacterial Agent [1],” the sentences “Aceto- phenone (1.2 g, 0.1 mmol) was added to 4-carbox- ybenzaldehyde derivatives (0.15 g, 0.1 mmol) in methanol (50 mL). KOH (1.7 g, 0.3 mmol) in methanol was added and the mixture was stirred at room temperature for 4 h under
nitrogen atmosphere” in Section 2.2 should be changed to
“Acetophenone derivatives (1.2 g, 0.1 mmol) were added to 4-carboxybenzaldehyde (0.15 g, 0.1 mmol) in methanol (50 mL). KOH (1.7 g, 0.3 mmol) in methanol was added, and the mixture was stirred at room temperature for 4 h under nitrogen atmosphere.”
O O H
HO O
X
CH3
KOH, MeOH DCC, DMAP, DCM
HO O
O X
HO O
O OH
HO O
O O
O O
X
2a: X= H 2b: X= Br
2c: X= Cl 3a: X= H
3b: X= Br 3c: X= Cl
NH2
O O H3C
(i) (ii) (iii)
HCl, NaNO3 C6H5OH, MeOH, CH2CHCH2Br tBuOK, KI, acetone
HO O
N N
O n
CH2
4a: n= 2 4b: n= 3 4c: n= 5 4d: n= 6
(1) SOCl2, DMF (2) TEA, DMF
O
O HO
OH
HO O
O O O
N N
O n CH2
5a: n= 2 5b: n= 3 5c: n= 5 5d: n= 6
Scheme1 Hindawi
Journal of Chemistry
Volume 2019, Article ID 7357830, 2 pages https://doi.org/10.1155/2019/7357830
Additionally, there was an error in Scheme 1, where the structure of 4-carboxybenzaldehyde should be changed from
“CH3” to “H.” The corrected scheme is as shown.
References
[1] C. Z. W. Sie, Z. Ngaini, N. Suhaili, and E. Madiahlagan,
“Synthesis of kojic ester derivatives as potential antibacterial agent,”Journal of Chemistry, vol. 2018, Article ID 1245712, 7 pages, 2018.
2 Journal of Chemistry
