138566-86-6Relevant articles and documents
The Reaction of tert-Butyldiphenylsilylcuprates with Allenes
Barbero, Asuncion,Cuadrado, Purificacion,Gonzalez, Ana M.,Pulido, Francisco J.,Fleming, Ian
, p. 2811 - 2816 (2007/10/02)
Bis(tert-butyldiphenylsilyl)cuprate 1 reacts with allenes to form allyl- and vinyl-silanes.With allene itself the cuprate reagent shows a different regiochemistry from that of bis(phenyldimethylsilyl)cuprate.The regiochemistry can be controlled by choosing an appropriate reaction temperature.The intermediate cuprate 4 resulting from the addition of 1 to allene reacts with a wide variety of electrophiles giving functionalised allylsilanes.Phenylallenes isomerise to acetylenes.