Direct observation of oxidative cyclization of eta2-alkene and eta2-aldehyde on Ni(0) center. Significant acceleration by addition of Me3SiOTf

Sensuke Ogoshi; Masa-aki Oka; Hideo Kurosawa

doi:10.1021/ja0460716

Direct observation of oxidative cyclization of eta2-alkene and eta2-aldehyde on Ni(0) center. Significant acceleration by addition of Me3SiOTf

J Am Chem Soc. 2004 Sep 29;126(38):11802-3. doi: 10.1021/ja0460716.

Authors

Sensuke Ogoshi¹, Masa-aki Oka, Hideo Kurosawa

Affiliation

¹ Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan. ogoshi@chem.eng.osaka-u.ac.jp

PMID: 15382909
DOI: 10.1021/ja0460716

Abstract

Direct oxidative cyclization of (eta2:eta2-CH2=CHCH2C6H4CHO)Ni(PR3) to form the nickelacycle and drastic acceleration of the cyclization by the addition of Me3SiOTf were observed. (eta2-PhCHO)Ni(PCy3)2 also reacted with Me3SiOTf to give (eta1:eta1-Me3SiOCH(Ph))Ni(PCy3)OTf.