90917-82-1Relevant articles and documents
Regioselective Formal [3+2] Cycloadditions of Urea Substrates with Activated and Unactivated Olefins for Intermolecular Olefin Aminooxygenation
Wu, Fan,Alom, Nur-E,Ariyarathna, Jeewani P.,Na?, Johannes,Li, Wei
supporting information, p. 11676 - 11680 (2019/07/31)
A new class of intermolecular olefin aminooxygenation reaction is described. This reaction utilizes the classic halonium intermediate as a regio- and stereochemical template to accomplish the selective oxyamination of both activated and unactivated alkenes. Notably, urea chemical feedstock can be directly introduced as the N and O source and a simple iodide salt can be utilized as the catalyst. This formal [3+2] cycloaddition process provides a highly modular entry to a range of useful heterocyclic products with excellent selectivity and functional-group tolerance.
2,3,6,7-Tetrahydro-2-thioxo-4H-oxazolo[3,2-a]-1,3,5 triazin-4-ones
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, (2008/06/13)
A compound of the formula STR1 wherein R1 is phenyl or substituted phenyl when R2 is hydrogen or lower alkyl; and R2 is phenyl or substituted phenyl when R1 is hydrogen or lower alkyl. These compounds are useful as anti-inflammatory agents.