Palladium catalysed tandem cyclisation–anion capture processes. Part 8: In situ and preformed organostannanes. Carbamyl chlorides and other starter species

U Anwar, MR Fielding, R Grigg, V Sridharan…

Index: Anwar, Usman; Fielding, Mark R.; Grigg, Ronald; Sridharan, Visuvanathar; Urch, Christopher J. Journal of Organometallic Chemistry, 2006 , vol. 691, # 8 p. 1476 - 1487

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Citation Number: 5

Abstract

A sequential one-pot process is reported involving in situ, palladium catalysed, formation of a series of tributylstannyl-1, 2-carbo and heterocyclic dialkylidene-5-membered rings from the corresponding 1, 6-diynes and Bu3SnH. These substrates and other organostannanes are then combined with carbamyl chlorides and iodobenzenes containing proximate alkene and alkynyl groups in palladium catalysed cyclisation–anion capture cascades affording a ...