A catalyst free protocol has been developed for nucleophilic Csp2–Csp3 bondcleavage of α-nitroketone in the presence of potassium carbonate to create new C–O and C–N bonds. A series of different substituted α-nitroketones could be selectively cleaved and converted into corresponding esters and tosylamides in the presence of alcohols and bromamine-T, respectively.
Nitrene Photochemistry of Manganese
<i>N</i>
‐Haloamides**
作者:Gerard P. Van Trieste、Kaleb A. Reid、Madeline H. Hicks、Anuvab Das、Matthew T. Figgins、Nattamai Bhuvanesh、Andrew Ozarowski、Joshua Telser、David C. Powers
DOI:10.1002/anie.202108304
日期:2021.12.13
Here we report the synthesis and nitrene transfer photochemistry of MnIII N-haloamide complexes. Photolysis results in both C−H bond amination and olefinic aziridination products. Low-temperature spectroscopy indicates halogen-dependent photoreactivity: Photolysis of N-chloroamides cleaves the Mn−N bond to generate MnII and amidyl radical species; in contrast, photolysis of N-iodoamides proceeds via
The carbon dioxide (CO2)-induced amidobromination of olefins with bromamine-T is described. The method can be used in reactions with a wide range of olefins, both aromatic and aliphatic, as well as electron-rich and deficient olefins, leading to the regioselective formation of amidobrominated compounds.
Mechanistic chemistry of oxidation of balsalazide with acidic chloramine-T and bromamine-T: A comparative spectrophotometric kinetic study
作者:PUTTASWAMY、S DAKSHAYANI
DOI:10.1007/s12039-014-0732-7
日期:2014.11
2-hydroxy-5-nitroso-benzoic acid and 3-(4-nitroso-benzoylamino)-propionic acid are identified as the oxidation products of BSZ with both CAT and BAT. The rate of oxidation of BSZ is about five-fold faster with BAT than with CAT. Plausible mechanism and related rate law have been deduced for the observed kinetics. Kinetics of oxidation of balsalazide (BSZ) by chloramine-T and bromamine-T in HClO4 medium
Iron(III) Porphyrin Catalyzed Aziridination of Alkenes with Bromamine-T as Nitrene Source
作者:Renu Vyas、Guang-Yao Gao、Jeremiah D. Harden、X. Peter Zhang
DOI:10.1021/ol049691k
日期:2004.6.1
[reaction: see text] Iron(III) porphyrin complexes Fe(Por)Cl are effective catalysts for aziridination of alkenes using bromamine-T as the nitrene source. The catalytic system can operate under mild conditions with alkenes as limiting reagents. The aziridination reaction is general and suitable for a wide variety of alkenes, including aromatic, aliphatic, cyclic, and acyclic olefins, as well as alpha,beta-unsaturated