Synthesis 2017; 49(16): 3582-3589
DOI: 10.1055/s-0036-1589052
special topic
© Georg Thieme Verlag Stuttgart · New York

On the Regioselectivity of the Nickel-Catalyzed Insertion of Alkynes into the Carbon–Carbon Bond of Oxetan-3-one

Manuel Barday
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
,
Christopher Janot
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
,
Daniel Clare
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
,
Caitlin Carr-Knox
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
,
Bradley Higginson
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
,
Kelvin Y. T. Ho
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
,
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK   Email: aissa@liverpool.ac.uk
› Author Affiliations
We thank the EPSRC (EP/P505615/1 studentship to K.Y.T.H. and EP/N509267/1 studentship to D.C.), the University of Liverpool (studentships to M.B. and C.J.), and AstraZeneca for financial support.
Further Information

Publication History

Received: 31 March 2017

Accepted after revision: 17.05.2017

Publication Date:
27 June 2017 (online)


Published as part of the Special Topic Advanced Strategies in Synthesis with Nickel

Abstract

The study of the regioselectivity of insertion of unsymmetrical alkynes into the carbon–carbon bond of oxetan-3-one in the presence of a nickel catalyst has revealed a strong directing effect of a 2-thienyl substituent. This effect is larger than those of 2-vinylbenzene, trimethylsilyl, aryl, or 3-thienyl groups.

Supporting Information