1940
DOI: 10.1002/cber.19400730108
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Über ein p,p ′‐ Diradikal des Diphenyls vom Typ des Triphenylmethyls. 1. Mitteil

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Cited by 19 publications
(2 citation statements)
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“…2,2′‐dimethyl‐4,4′‐dibromobiphenyl (1 g, 0.29 mmol) was reacted with CuCN (0.47 g, 5.3 mmol) and the product purified as described previously to yield 0.35 g (65%) of a white solid. mp 112–113 °C (lit 113 °C); 1 H NMR (300 MHz; CDCl 3 ) δ 7.6 (d, 2H, J = 0.6 Hz), 7.56 (dd, 2H, J = 7.8 Hz, J = 0.6), 7.17 (d, 2H, J = 8.7), 2.08 (s, 6H); 13 C NMR δ 144.63, 137.15, 133.86, 129.84, 129.68, 118.73, 112.27, 19.68. The complex EPR spectrum was not interpreted.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…2,2′‐dimethyl‐4,4′‐dibromobiphenyl (1 g, 0.29 mmol) was reacted with CuCN (0.47 g, 5.3 mmol) and the product purified as described previously to yield 0.35 g (65%) of a white solid. mp 112–113 °C (lit 113 °C); 1 H NMR (300 MHz; CDCl 3 ) δ 7.6 (d, 2H, J = 0.6 Hz), 7.56 (dd, 2H, J = 7.8 Hz, J = 0.6), 7.17 (d, 2H, J = 8.7), 2.08 (s, 6H); 13 C NMR δ 144.63, 137.15, 133.86, 129.84, 129.68, 118.73, 112.27, 19.68. The complex EPR spectrum was not interpreted.…”
Section: Methodsmentioning
confidence: 99%
“…4,4′‐Dibromo‐2,2′,6,6′‐tetramethylbiphenyl (0.71 g, 1.92 mmol) was reacted with CuCN (0.41 g, 4.6 mmol) and purified as described previously to yield 0.12 g (24%) of a white solid. mp 252–253 °C; 1 H NMR (300 MHz; CDCl 3 ) 7.46 (s, 4H), 2.09 (s, 12H); 13 C NMR δ 134.41, 136.77, 131.53, 118.95, 111.88, 19.66; UV–VIS (DMF) 283 nm (log ε = 3.44), 274 nm (log ε = 3.47).…”
Section: Methodsmentioning
confidence: 99%