Organometallics

Mechanistic study of the reactions of 1, 1-dimethylallene with nickel (0) complexes. The. pi.-and. sigma.-complex formation vs. electron transfer

DJ Pasto, NZ Huang

Index: Pasto, Daniel J.; Huang, Nai-Zhong Organometallics, 1985 , vol. 4, p. 1386 - 1395

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Citation Number: 25

Abstract

The reactions of 1, l-dimethylallene (DMA) with several Ni (0) complexes have been studied. Kinetic and NMR studies on the reaction of DMA with tris (triphenylphosphine) nickel (O)[(TPP), Ni] indicate the formation of mono (1, l-dimethylalleneb, cis-and trans-bis (1, l- dimethylal1ene)-, and tris (1, l-dimethylal1ene) nickel complexes, the ratio of the complexes depending on the concentration of DMA and added TPP. At temperatures below-60" C the ...