Enantio- and Diastereoselective Synthesis of Homoallylic α-Trifluoromethyl Amines by Catalytic Hydroalkylation of Dienes

21 January 2020, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

We describe a strategy for the enantio- and diastereoselective synthesis of homoallylic α-trifluoromethyl amines by the catalytic hydroalkylation of terminal dienes. Trifluoromethylsubstituted isatin-derived azadienolate nucleophiles undergo γ-selective alkylation with a Pd–DTBM-SEGPHOS catalyst, which additionally promotes regioselective addition to the diene and delivers products in up to 86% yield, 10:1 dr, and 97.5:2.5 er.

Keywords

hydroalkylation
dienes
homoallylic alpha-CF3 amines
enantioselectivity
palladium

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