Synthesis and reactivity of boryloxorhodium complexes. Relevance to intermolecular transmetalation from boron to rhodium in Rh-catalyzed reactions

Yasushi Nishihara; Yasuhiro Nishide; Kohtaro Osakada

doi:10.1039/d1dt00440a

Synthesis and reactivity of boryloxorhodium complexes. Relevance to intermolecular transmetalation from boron to rhodium in Rh-catalyzed reactions

Dalton Trans. 2021 Mar 16;50(10):3610-3615. doi: 10.1039/d1dt00440a.

Authors

Yasushi Nishihara¹, Yasuhiro Nishide¹, Kohtaro Osakada¹

Affiliation

¹ Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan. osakada.k.aa@m.titech.ac.jp ynishiha@okayama-u.ac.jp.

PMID: 33624681
DOI: 10.1039/d1dt00440a

Abstract

The synthesis of a dimeric boryloxorhodium complex having the Rh-O-Bpin scaffold from the reaction of [(cod)Rh(OMe)]2 or [(cod)Rh(OH)]2 with an arylboronate has been achieved. The obtained dirhodium complex is converted into mononuclear complex [(cod)Rh(OBpin)(PPh3)], which reacts with arylboronic acid to afford the complex with an Rh-aryl bond via transmetalation from boron to rhodium. The dimeric boryloxorhodium complex catalyzes the 1,4-addition of arylboronic acid to cyclohexene-2-one.