52107-84-3Relevant articles and documents
N-Iodosuccinimide (NIS) in Direct Aromatic Iodination
Bergstr?m, Maria,Suresh, Ganji,Naidu, Veluru Ramesh,Unelius, C. Rikard
, p. 3234 - 3239 (2017/06/21)
N-Iodosuccinimide (NIS) in pure trifluoroacetic acid (TFA) offers a time-efficient and general method for the iodination of a wide range of mono- and disubstituted benzenes at room temperature, as demonstrated in this paper. The starting materials were generally converted into mono-iodinated products in less than 16 hours at room temperature, without byproducts. A few deactivated substrates needed addition of sulfuric acid to increase the reaction rate. Another exception was methoxybenzenes that preferentially were iodinated by NIS in acetonitrile with only catalytic amounts of TFA.
Reactions of Aryl Ketones and Coumarins with Iodine(III) Tris(trifluoroacetate)
Fukuyama, Norihiro,Nishino, Hiroshi,Kurosawa, Kazu
, p. 4363 - 4368 (2007/10/02)
The reaction of acetophenones with iodine(III) tris(trifluoroacetate) yields 3'- and/or 2-iodo derivatives, depending upon the substituent on the aromatic ring and the reaction conditions.The reaction was examinedby changing the molar ratio of acetophenone versus the reagent, reaction temperature, and solvent.In similar reactions flavanones and coumarins gave iodo derivatives in which iodine is incorporated at various positions orientated by the oxygen functions. 1,2-Diphenylethanone yields 2-hydroxy-2-(2-iodophenyl)-1-phenylethanone and 1-(2-iodophenyl)-2-phenylethanedione.The reactions of other aromatic ketones such as 9-xanthenone, 9-fluorenone, and anthrone also give iodo derivatives in moderate to good yields.The mechanisms for the iodination at the α-carbon to the carbonyl group have been discussed.