Photochemical generation of thiophene analogs of 9??fluorenyl cations

…, K Najafian, X Zeng, E Lee??Ruff

Index: Bancerz, Mathew; Huck, Lawrence A.; Leigh, William J.; Mladenova, Gabriela; Najafian, Katayoun; Zeng, Xiaofeng; Lee-Ruff, Edward Journal of Physical Organic Chemistry, 2010 , vol. 23, # 12 p. 1202 - 1213

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Citation Number: 8

Abstract

Abstract The 9-fluorenyl cation is a member of the 4N Hückel antiaromatic series of intermediates, first observed by time-resolved spectroscopy on UV photo-excitation of 9- fluorenol. Thiophene analogs of 9-fluorenol in which one of the annelated benzene rings is replaced by a thiophene were prepared in three regioisomeric forms, and subjected to preparative and laser flash photolysis. Photoproduct studies in methanol indicated ...