Correction: Palladium nanoparticles immobilized on polyethylenimine-derivatized gold surfaces for catalysis of Suzuki reactions: development and application in a lab-on-a-chip context

Abstract

Correction for ‘Palladium nanoparticles immobilized on polyethylenimine-derivatized gold surfaces for catalysis of Suzuki reactions: development and application in a lab-on-a-chip context’ by Prasad Anaspure et al., RSC Adv., 2021, 11, 35161–35164. https://doi.org/10.1039/D1RA06851B.

The authors regret that the turnover numbers (TONs) were not correctly given in the original article.

In the abstract on page 35161, the corrected number should read 3.4 × 10⁴.

The corrected versions of Table 1 and 2 are shown below.

Suzuki cross-coupling reactions of aryl halides with arylboronic acids using PEI/Pd as catalysts^a.

Entry	R1	X	R2	Amount of Pd, μg	Yield	TON
1	H	I	H	3.2	93%	3.1 × 104
2	H	Br	H	2.8	95%	3.4 × 104
3	H	I	2-CH3	3.9	82%	2.2 × 104
4	H	I	3-OCH3	4.0	57%	1.5 × 104
5	H	I	4-OCH3	3.7	84%	2.4 × 104
6	H	I	2-CN	3.99	15%	0.4 × 104
7	H	I	4-CN	3.6	95%	2.8 × 104
8	4-CH3	Br	H	6.2	88%	1.5 × 104
9	4-OCH3	Br	H	8.4	95%	1.2 × 104
10	H	I	H3–NH2	3.5	n. r.	—
11	H	Cl	H	1.0	94%	10.0 × 104
12	4-OCH3	Cl	H	1.62	80%	5.3 × 104
13	4-CoCH3	Cl	H	1.5	n. r.	—

^aGeneral procedure: 1.0 mmol of aryl halide, 1.2 mmol of arylboric acid, 2.0 mmol of k₂CO₃ in H₂O/EtOH. Turnover number TON = mol product/mol Pd. n. r. = no reaction.

Suzuki cross coupling reaction of iodobenzene and phenylboronic acid using PEI/Pd as catalyst^a.

Entry	Run	Conc. of Pd, αg	Yield	TON
1	1st	±2.3	93%	4.4 × 104
2	2nd	±2.22	89%	4.3 × 104
3	3rd	±2.22	85%	4.0 × 104
4	4th	±2.15	80%	3.9 × 104

^aGeneral procedure: 1.0 mmol of aryl halide, 1.2 mmol of arylboronic acid, 2.0 mmol of K₂CO₃ in H₂O/EtOH. TON = mol product/mol.

Accordingly, Table 1-SI, Table 2-SI, Table 3-SI, and Table 4-SI in the original ESI have been revised; the ESI has been updated online.

An independent expert has viewed the corrected tables and has concluded that they are consistent with the discussions and conclusions presented.

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