Tetrahedron Letters

Borylation using group IV metallocene under mild conditions

LD Marciasini, M Vaultier, M Pucheault

Index: Marciasini, Ludovic D.; Vaultier, Michel; Pucheault, Mathieu Tetrahedron Letters, 2014 , vol. 55, # 10 p. 1702 - 1705

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Citation Number: 4

Abstract

Abstract A borylation reaction of aromatic diazonium salts has been optimized using titanocene and zirconocene derivatives as catalysts. The reaction employs diisopropylaminoborane as a borylating agent and proceeds smoothly at room temperature to provide arylboronates after methanolysis and transesterification with pinacol. The reaction mechanism has been found to proceed via a radical pathway.