2712-78-9O=C(OI(OC(=O)C(F)(F)F)c1ccccc1)C(F)(F)FPEZNEXFPRSOYPL-UHFFFAOYSA-N2712-78-9DTXSID40181584化学的特性White to pale yellow crystalline powder
Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 50 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Chemical: Iodine, phenylbis(trifluoroacetato-O)-
Bis(trifluoroacetoxy)iodobenzene: Does not have an individual approval but may be used under an appropriate group standard
用途有機合成原料。
使用[Bis(trifluoroacetoxy)iodo]benzene acts as a reagent in Pummerer-like reactions. It plays an important role in the direct alfa-hydroxylation of ketones under acidic conditions. It is involved in the cyclization of styryl amines to N-alkyl or N-aryl indoles. It serves as a reagent for the chemoselective deprotection of dimethoxybenzyl ethers and tosyloxylation of anilides. Further, it is used in the synthesis of 1,3,4-oxadiazoles by the oxidation of N-acylhydrazones. In addition to this, it is employed in the Hofmann rearrangement for the conversion of cyclobutanecarboxamide to cyclobutylamine hydrochloride.
純化方法Crystallise the iodo compound from warm trifluoroacetic acid and dry it over NaOH pellets. Recrystallise it also from Me2CO/pet ether. Its melting point depends on the heating rate. [Spyroudis & Varvoglis Synthesis 445 1975, application: Almond et al. Org Synth 66 132 1988.]
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