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. Author manuscript; available in PMC: 2019 Jan 17.
Published in final edited form as: J Am Chem Soc. 2018 Jan 4;140(2):598–601. doi: 10.1021/jacs.7b12213

Scheme 3.

Scheme 3

Implications for Stereochemistry of the Minor Diastereomer and Stereochemical Model

aStandard catalysis conditions; see Table 2. b3.0 equiv acetone, 5.0 equiv silane, 5 mol % Cu(OAc)2, 6 mol % L1, THF, 22 °C, 1 h.