Synthesis and Comparative Characterization of 9??Boraanthracene, 5??Boranaphthacene, and 6??Borapentacene Stabilized by the H2IMes Carbene

…, WE Piers, BA Keay, M Parvez

Index: Wood, Thomas K.; Piers, Warren E.; Keay, Brian A.; Parvez, Masood Chemistry - A European Journal, 2010 , vol. 16, # 40 p. 12199 - 12206

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Citation Number: 34

Abstract

Abstract A general procedure for the preparation of three N-heterocyclic carbene stabilized, boron-containing acenes (9-boraanthracene, 5-boranaphthacene, and 6-borapentacene) is presented. The key steps involve a transmetallation reaction between BCl 3 and an appropriate stannacyclic precursor, and the dehydrochlorination of the H 2 IMes adduct of the chloroborane product. Comparative structural, photophysical, and redox properties ...