Borohydrides from organic hydrides: reactions of Hantzsch's esters with B (C6F5) 3

…, VS Laberge, SJ Geier, DW Stephan…

Index: Webb, Jonathan D.; Laberge, Veronique S.; Geier, Stephen J.; Stephane; Crudden, Cathleen M. Chemistry - A European Journal, 2010 , vol. 16, # 16 p. 4895 - 4902

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Citation Number: 26

Abstract

Abstract We report herein that the reaction between a series of Hantzsch's ester analogues 1 a–d with the Lewis acidic species B (C 6 F 5) 3 results in facile transfer of hydride to boron. The main products of this reaction are pyridinium borohydride salts 2 a–d, which are obtained in high to moderate yields. The N-substituted substrates (N-Me, N-Ph) reacted in high yield 90–98% and the connectivity of the products were confirmed by an X-ray ...