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Iodoform stored in an ampoule. Iodoform (also known as triiodomethane) is the organoiodine compound with the chemical formula C H I 3.It is a pale yellow, crystalline, volatile substance, with a penetrating and distinctive odor (in older chemistry texts, the smell is sometimes referred to as that of hospitals, where the compound is still commonly used) and, analogous to chloroform, sweetish taste.
Industrially significant organoiodine compounds, often used as disinfectants or pesticides, are iodoform (CHI 3), methylene iodide (CH 2 I 2), and methyl iodide (CH 3 I). [4] Although methyl iodide is not an industrially important product, it is an important intermediate, being a transiently generated intermediate in the industrial production ...
[23] [24] This method has been used in natural product synthesis of Taxol by Danishefsky [25] and Cortistatin A by Shair. [26] Another method is the Takai olefination which uses iodoform and chromium(II) chloride to make vinyl iodide from aldehyde with high stereoselectivity for E geometry. [27]
It was formerly used to produce iodoform, bromoform, and even chloroform industrially. [citation needed] A variant of this reaction is used to manufacture deuterated chloroform, in reaction of hexachloroacetone with heavy water catalysed by base: [5] [6] O=C(CCl 3) 2 + D 2 O → 2 CDCl 3 + CO 2
In 1822, Serullas added potassium metal to a solution of iodine in ethanol and water to form potassium formate and iodoform, called in the language of that time hydroiodide of carbon, [1] and used as an antiseptic. He is buried in the Père Lachaise Cemetery (10th division). [2] Tomb of Georges Simon Serullas at Père-Lachaise Cemetery
One of the more well-known uses of organoiodine compounds is the so-called iodoform test, where iodoform (CHI 3) is produced by the exhaustive iodination of a methyl ketone (or another compound capable of being oxidised to a methyl ketone), as follows: [26]
Diiodomethane is a reagent for installing the CH 2 group. In the Simmons–Smith reaction, it is a source of methylene. [4] In fact the Simmons–Smith reaction does not produce free carbene but proceeds via Zn-CH 2 I intermediates. Diiodomethane is also a source of the equivalent of CH 2+ 2. The synthesis of Fe 2 (CH 2)(CO) 8 illustrates this ...
Iodine is a chemical element with many uses in medicine, depending on the form. Elemental iodine and iodophors are topical antiseptics. [2] Iodine, in non-elemental form, functions as an essential nutrient in human biology (see iodine in biology). [3] Organic compounds containing iodine are also useful iodinated contrast agents in X-ray imaging ...
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