Selective CC bond activation of 2-aryl-1-methylenecyclopropanes promoted by Ir (I) and Rh (I) hydrido complexes. Mechanism of ring-opening isomerization of the …

Y Nishihara, C Yoda, M Itazaki, K Osakada

Index: Nishihara, Yasushi; Yoda, Chikako; Itazaki, Masumi; Osakada, Kohtaro Bulletin of the Chemical Society of Japan, 2005 , vol. 78, # 8 p. 1469 - 1480

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Citation Number: 17

Abstract

[IrH (CO)(PPh 3) 3] promotes ring opening of 2-phenyl-1-methylenecyclopropane at room temperature to produce the Ir complex with a chelating 2-phenyl-3-butenyl ligand,[Ir {η 2-CH 2 CH (Ph) CH= CH 2-κC 1}(CO)(PPh 3) 2](1). The reaction of excess 2-phenyl-1- methylenecyclopropane with [IrH (CO)(PPh 3) 3] at 50° C yields [Ir {η 2-(oC 6 H 4) CH (Me) CH= CH 2-κC 1}(CO)(PPh 3) 2](2), accompanied by the formation of 1-phenyl-1, 3- ...