Iodoarenes synthesis by iodination or substitution
网页Convenient and simple, sequential diazotization-iodination of aromatic amines with NaNO 2 /KI in the presence of a sulfonic acid based cation-exchange resin in water is an inexpensive, noncorrosive and eco-friendly synthetic route, that allows the preparation of various electron-rich and deficient iodoarenes in good yields.
Iodination [I2] - ChemistryScore
网页Iodination Definition: Iodination is a reaction where iodine is added to a double bond of alkene to give a diiodide. Iodination Explained: Alkene chlorination and bromination are very general reactions, and mechanistic study of these reactions provides additional insight into electrophilic addition reactions of alkenes.
Electrophilic Iodination of Organic Compounds Using …
网页2022年1月5日 · The best choice for the iodination of organic compounds is the use of molecular iodine or the iodide anion in combination with environmentally friendly and atom-efficient oxidants in the presence of desirable solvents or under solvent-free protocols, thus enhancing the green chemical profile of the iodination process .
Selective C–H Iodination of (Hetero)arenes | Organic Letters
网页2021年6月11日 · Here, we present a strategy for selective C–H iodination of (hetero)arenes with a broad functional group tolerance. We demonstrate the utility and differentiation to other iodination methods of supposed sulfonyl hypoiodites for …
22.4: Electrophilic Aromatic Substitution - Chemistry LibreTexts
网页2021年7月31日 · The way to achieve direct iodination in the absence of powerful activating substituent groups is to convert molecular iodine to some more active species (perhaps \(\ce{H_2OI}^\oplus\) or \(\ce{I}^\oplus\)) with an oxidizing agent such as nitric acid or hydrogen peroxide:
Simple, Efficient and Controllable Synthesis of Iodo/
网页2017年1月16日 · A practical, efficient, and operationally simple strategy for the ipsoiododecarboxylation and di -iodination of aromatic carboxylic acids using the low-cost commercial reagent succinimide (NIS)...
Iodine Chemistry and Applications - Wiley Online Library
网页2014年10月10日 · Since the organic iodides are widely used in organic synthesis, this chapter deals with typical reactions for synthesis of alkyl and aryl iodides. The chapter first discusses the iodination of aliphatic hydrocarbons, aromatic hydrocarbons, alkenes and …
Alkyl iodide synthesis by iodination or substitution
网页The combination of methanesulfonic acid and inorganic halide salts (CaCl 2, LiBr, LiI) mediates hydrochlorinations, hydrobrominations, and hydroiodinations of unactivated alkenes in acetic acid. This approach uses readily available and inexpensive reagents to provide alkyl halides in very good yields.
Iodine-Mediated Reactions: European Journal of Organic …
网页2017年5月29日 · Iodine-mediated reactions, especially the use of hypervalent iodine compounds, are attractive alternatives to heavy-metal-catalyzed reactions. Hypervalent-iodine species combine a number of appealing features, such as. Mild, nontoxic, and environmentally benign character. Low cost and ready availability.
Illustrated Glossary of Organic Chemistry - Iodination
网页Iodination: Any reaction or process in which iodine (and no other elements) are introduced into a molecule. Iodination of tert -butyl benzene by electrophilic aromatic substitution. Enolate iodination is part of the iodoform reaction. Wikipedia entry.
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