Further studies on Ni (0)-catalyzed cyclization of a branched 1, 3-diene and tethered aldehyde via oxa-nickelacycle intermediate

Y Sato, T Takanashi, M Hoshiba, M Mori

Index: Sato, Yoshihiro; Takanashi, Tetsuya; Hoshiba, Megumi; Mori, Miwako Journal of Organometallic Chemistry, 2003 , vol. 688, # 1-2 p. 36 - 48

Full Text: HTML

Citation Number: 0

Abstract

The reactivity of oxa-nickelacycles 7, generated by the reaction of a branched 1, 3-diene and tethered carbonyl group with a Ni (0) complex, was investigated in detail. It was found that oxa-nickelacycles 7 are relatively stable and that β-hydride elimination from 7 occurred at a high temperature, producing the cyclized dienes 51 and/or 52 in good yields. This Ni (0)- catalyzed cyclization via β-hydride elimination from oxa-nickelacycles tolerated various ...