Halogenating agents oxidations

Halogenated organic compounds Halogenating agents Oxidizing agents... 

Generally these derivatives are rather unstable and behave as oxidizing and halogenating agents. 1-Iodoimidazoles are more stable than other analogs. 

The preparation of isothiazolidin-3-one 5-oxide and 5,5-dioxide derivatives of azetidin-3-ones was described (99EUP100069), starting from penicillanic acid sulfoxide amides in the presence of halogenating agents in anhydrous inert solvents or even without them. Through rearrangement and oxidation with conventional methods, compounds 73 could be obtained. For some derivatives the usefulness, as intermediates for the preparation of novel p-lactam analogs or active substances in formulations for antimicrobial therapy, is claimed. 

Numerous chemical reactions have been carried out on ferrocene and its derivatives.317 The molecule behaves as an electron-rich aromatic system, and electrophilic substitution reactions occur readily. Reagents that are relatively strong oxidizing agents, such as the halogens, effect oxidation at iron and destroy the compound. 

Halogenating Agents In situ halide oxidation by mammalian white blood cells, fungi, and aquatic plants Stabilized Hypohalous Acids... 

F2 has the most positive standard reduction potential and therefore is the strongest of all common oxidizing agents. Oxidizing strengths of the diatomic halogen molecules decrease down Group 7A. 

The oxides have been converted to the trihalides by reaction with amine hydrohalides with mp <200°C (e.g., PhNH2, MeNH2, Me2NH, EtNH2, Et NH, etc.). A double salt was formed from the reaction with the hydrohalide, which served both as solvent and halogenating agent. The reaction mixture was heated to vaporize the solvent and decompose the double salt, leaving the anhydrous halide (85). 

Of the inhaled anesthetics, nitrous oxide is the least likely to increase cerebral blood flow. At low concentrations, all of the halogenated agents have similar effects on cerebral blood flow. However, at higher concentrations, the increase in cerebral blood flow is less with the less soluble agents such as desflurane and sevoflurane. If the patient is hyperventilated before the volatile agent is started, the increase in intracranial pressure can be minimized. 

Halogens and halogenating agents. Addition of halogens to ethylene oxides has been reported on a number of occasions, but little is known of the scope or mechanism of this reaction, as it is of no synthetic importance. 

Phosphorus pentachlonde too has received some attention as a halogenating agent with such epoxides as ethylene oxide,lM 1,2-epoxy-2-methyibutane,10 and 2,3-epoxy hexane.7A 8 The nature of products formed in these reactions is not known with certainty, however. 

Solvated thiazylchloride trimer (N3S3C13) acts as a source of NSC1 and can be used to prepare thionitrosyl complexes. The use of thiazylchloride is limited because it can also function as a simple halogenating or oxidizing agent (equations 61 and 62). 

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