Substituent effects and charge delocalization mode in chrysenium, benzo [c] phenanthrenium, and benzo [g] chrysenium cations: a stable ion and electrophilic …

…, T Okazaki, S Kumar, SE Galembeck

Index: Laali; Okazaki; Kumar; Galembeck Journal of Organic Chemistry, 2001 , vol. 66, # 3 p. 780 - 788

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Citation Number: 29

Abstract

The first series of persistent carbocations derived from mono-and disubstituted chrysenes Ch (5-methyl-3, 2-methoxy-19, 2-methoxy-11-methyl-20, 2-methoxy-5-methyl-21, and 9- methyl-4 H-cyclopenta [def] chrysene 22), monosubstituted benzo [c] phenanthrenes BcPh (3-methoxy-23, 3-hydroxy-24), and monosubstituted benzo [g] chrysenes BgCh (12-methoxy- 25; 12-hydroxy-26) were generated in FSO3H/SO2ClF or FSO3H-SbF5 (4: 1)/SO2ClF and ...