Journal
SYNLETT
Volume 24, Issue 16, Pages 2061-2066Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0033-1339495
Keywords
oxidation; hypervalent iodine reagent; (dichloroiodo)benzene; 1,3,5-triazine; chlorination
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Funding
- Department of Science and Technology, New Delhi, India [SR/S1/OC-72/2009]
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The synthesis of 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine, as a new recyclable nonpolymeric analogue of (dichloroiodo)benzene, is achieved in two steps using 2,4,6-trichloro-1,3,5-triazine and 4-iodophenol. The application of 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine for the chlorination reaction of various activated arenes, olefin, and 1,3-diketone is demonstrated. The reagent 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine can be applied also for the oxidative synthesis of 1,3,4-oxadiazoles and 1,2,4-thiadiazoles under mild conditions in excellent yields. The recyclability of the 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine was possible owing to the facile recovery and reuse of the coproduced 2,4,6-tris(4-iodophenoxy)-1,3,5-triazine from the reaction mixture due to its practical insolubility in methanol.
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