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Title: Compartmentalized Nanoreactors for One-Pot Redox-Driven Transformations

Journal Article · · ACS Catalysis

This contribution introduces poly(2-oxazoline)-based shell cross-linked micelles (SCMs) as nanoreactors to realize one-pot redox-driven deracemizations of secondary alcohols in aqueous media. TEMPO and Rh-TsDPEN moieties are spatially positioned into the hydro-philic corona and the hydrophobic micelle core, respectively. TEMPO catalyzes the oxidation of racemic secondary alcohols into ketones while Rh-TsDPEN catalyzes the asymmetric transfer hydrogenation (ATH) of these ketones to afford enantioenriched secondary alco-hols. Both catalysts, the Rh-TsDPEN complex and TEMPO are incompatible with each other and the SCMs are designed to provide indispensable catalyst site-isolation. Kinetic studies show that the SCMs enhance the reactivity of the immobilized catalysts, compared to those for the unsupported analogs under the same reaction conditions. In conclusion, our nanoreactors can perform deracemizations on a broad range of secondary alcohol substrates and are reusable in a continuous manner while maintaining high activity.

Research Organization:
Georgia Institute of Technology, Atlanta, GA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-03ER15459
OSTI ID:
1657171
Journal Information:
ACS Catalysis, Vol. 9, Issue 4; ISSN 2155-5435
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 48 works
Citation information provided by
Web of Science

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