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. Author manuscript; available in PMC: 2020 Feb 15.
Published in final edited form as: Org Lett. 2019 Jan 29;21(4):984–988. doi: 10.1021/acs.orglett.8b03959

Scheme 3.

Scheme 3.

Evaluation of Various Silicon Enolates a,b

a Conditions: N,N-dialkylaniline (0.2 mmol), silicon enolate (0.4 mmol), B(C6F5)3 (10 mol %), solvent, under N2, 22 °C, 12 h. b Yield of purified products. c Benzene (0.5 mL) was used. d THF (0.5 mL) was used. See the Supporting Information for details.