Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 137, Issue 18, Pages 6059-6066Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b02347
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Funding
- National Basic Research Program of China (973 Program) [2015CB856600]
- National Natural Science Foundation of China [21325206, 21172006]
- National Young Top-notch Talent Support Program
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An efficient Mn-catalyzed aerobic oxidative hydroxyazidation of olefins for synthesis of beta-azido alcohols has been developed. The aerobic oxidative generation of azido radical employing air as the terminal oxidant is disclosed as the key process for this transformation. The reaction is appreciated by its broad substrate scope, inexpensive Mn-catalyst, high efficiency, easy operation under air, and mild conditions at room temperature. This chemistry provides a novel approach to high value-added beta-azido alcohols, which are useful precursors of aziridines, beta-amino alcohols, and other important N- and O-containing heterocyclic compounds. This chemistry also provides an unexpected approach to azido substituted cyclic peroxy alcohol esters. A DFT calculation indicates that Mn catalyst plays key dual roles as an efficient catalyst for the generation of azido radical and a stabilizer for peroxyl radical intermediate. Further calculation reasonably explains the proposed mechanism for the control of C-C bond cleavage or for the formation of beta-azido alcohols.
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