Correction: An N-heterocyclic carbene-based pincer system of palladium and its versatile reactivity under oxidizing conditions

Abstract

Correction for ‘An N-heterocyclic carbene-based pincer system of palladium and its versatile reactivity under oxidizing conditions’ by Haobin Li et al., Dalton Trans., 2024, 53, 11470–11480, https://doi.org/10.1039/D4DT00980K.

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The authors apologize for the typographical errors in the original article (please note that all supplementary information (SI) materials are correct) and would like to make the following corrections:

(1) Page 11471, left column: “wave at 450 mV” should read “wave at 475 mV”.

(2) Page 11472, left column: “Δδ = 11.1 ppm” should read “Δδ = 1.1 ppm”.

(3) Page 11473, right column: in “non-isotope-labeled complex 5 (Fig. 3)”, the compound number should be 8.

(4) Page 11477, right column: the description titled “Synthesis of 5^F” has been copied incorrectly, and the correct description should be:

“Compound 4 (70 mg, 0.1 mmol), NFSI (32 mg, 0.1 mmol) and CH₂Cl₂ (2 mL) were mixed in a 50 mL round bottom flask. The reaction mixture was stirred at ambient temperature for 5 min. The organic phase was dried under vacuum. The residue was washed with chloroform (2 mL × 3) and then dried under vacuum affording the product as a yellow solid (99 mg, 97%). ¹H NMR (500 MHz, CD₃CN): δ (ppm) 9.18 (d, 1H, Ar–H, ³J_H,H = 5.0 Hz), 8.74 (d, 1H, Ar–H, ³J_H,H = 8.1 Hz), 8.66 (d, 1H, Ar–H, ³J_H,H = 7.9 Hz), 8.57–8.54 (m, 1H, Ar–H), 8.41 (t, 1H, Ar–H, ³J_H,H = 7.7 Hz), 8.11–8.10 (m, 2H, Ar–H), 7.73 (d, 4H, Ar–H, ³J_H,H = 7.2 Hz), 7.65 (t, 1H, Ar–H, ³J_H,H = 6.5 Hz), 7.60 (d, 1H, NCH=CHN, ³J_H,H = 1.7 Hz), 7.48–7.30 (m, 10H, Ar–H), 7.16 (d, 1H, NCH=CHN, ³J_H,H = 1.8 Hz), 7.09 (d, 1H, NCH=CHN, ³J_H,H = 1.8 Hz), 5.93 (dd, 1H, NCH₂C_Ar, J₁ = 15 Hz, J₂ = 3.8 Hz), 5.34 (dd, 1H, NCH₂C_Ar, J₁ = 15 Hz, J₂ = 3.8 Hz), 5.21 (d, 1H, NCH₂C_Ar, ²J_H,H = 15 Hz), 4.52 (d, 1H, NCH₂C_Ar, ²J_H,H = 15 Hz), 3.91–3.86 (m, 1H, NCH̲₂CH₂CH₂CH₃), 3.60–3.55 (m, 1H, NCH̲₂CH₂CH₂CH₃), 2.63–2.57 (m, 1H, NCH̲₂CH₂CH₂CH₃), 2.40–2.34 (m, 1H, NCH̲₂CH₂CH₂CH₃), 1.40–1.31 (m, 1H, CH₂CH̲₂CH₂CH₃), 1.18–1,10 (m, 2H, CH₂CH̲₂CH₂CH₃), 0.91–0.48 (m, 11H, CH₂CH̲₂CH̲₂CH̲₃). ¹³C NMR (100 MHz, CD₃CN): δ (ppm) 156.7, 155.0, 154.3, 153.9, 153.7 (d, C_carbene, ²J_C,F = 6.5 Hz), 152.1, 151.4, 147.4, 145.1, 144.5, 138.2, 137.2, 133.6, 131.1, 131.1, 130.8, 130.2, 129.4, 129.0, 128.9, 127.2, 124.7, 124.5, 124.1, 123.5 (Ar–C), 55.7 (NCH₂), 54.9 (d, NCH₂, ⁴J_C,F(through-space) = 11 Hz), 49.4 (d, NCH₂, ⁴J_C,F(through-space) = 6.6 Hz), 48.7 (NCH₂), 32.9, 32.6 (NCH₂C̲H₂CH₂CH₃), 20.3, 20.0 (NCH₂CH₂C̲H₂CH₃), 13.7, 13.4 (–C̲H₃). ¹⁹F NMR (470 MHz, CD₃CN): δ (ppm) −151.52 (BF₄⁻), −374.18 (Pd–F). ESI-MS (positive) m/z: 315 [M-all anions]²⁺.

(5) Page 11478, left column: in the section titled “Synthesis of 7”, “−395.95 (Pd^IV–F)” should read “−394.95 (Pd^IV–F)”, “compound 2 (29 mg, 0.05 mmol)” should read “compound 6 (29 mg, 0.05 mmol)”, and “H₂O (10 µL, 0.055)” should read “H₂O (10 µL, 0.55 mmol)”.

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

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