Journal
ORGANIC LETTERS
Volume 21, Issue 13, Pages 4966-4970Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b01430
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Funding
- Department of Science and Technology (DST/SERB) [EMR/2016/007042]
- IIT Guwahati
- DST/SERB [SB/S2/RJN/004-2015]
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tert-Butyl nitrite (TBN) mediated synthesis of 3-aryl-1,2,4-oxadiazol-5(4H)-ones has been accomplished using terminal aryl alkenes via a biradical reaction intermediate. Three consecutive sp(2) C-H bond functionalizations of styrenes afforded 3-phenyl-1,2,4-oxadiazol-S(4H)-ones via the formation of new C=N, C=O, C-O, and two C-N bonds. Both of the N atoms originate from TBN, while the carbonyl oxygen is from the water (moisture) the other oxygen from the N=O part of the TBN.
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