The first biomimetic water soluble FeII-porphyrin nitroxyl complexes were obtained and characterized by UV-Vis in protonated and deprotonated forms by reduction of previously isolated and characterized FeIITPPSNO•. The pKa involved in the FeII-HNO ⇄ FeII-NO- + H+ equilibrium was estimated to be around 9.7. The FeIITPPSHNO complex spontaneously reoxidizes to the nitrosyl form following a first order
sulfonamides as sulfenylating agents has been established. In the presence of catalytic amounts of iodine and N-hydroxysuccinimide, N-hydroxy sulfonamides participated in sulfenylation with indoles, 7-azaindole, N-methyl pyrrole, and 2-naphthol to afford structurally diverse thioethers in moderate to excellent yields with very high regioselectivity.
Solid-gas reactions for nitroxyl (HNO) generation in the gas phase
作者:Guillermo Carrone、Agostina Mazzeo、Ernesto Marceca、Juan Pellegrino、Sebastián Suárez、Jessica Zarenkiewicz、John P. Toscano、Fabio Doctorovich
DOI:10.1016/j.jinorgbio.2021.111535
日期:2021.10
We present a novel nitroxyl (HNO) generation method, which avoids the need of using a liquid system or extreme experimental conditions. This method consists of the reaction between a gaseous base and an HNO donor (Piloty’s acid) in the solid phase, allowing the formation of gaseous HNO in a fast and economical way. Detection of HNO was carried out indirectly, measuring the nitrous oxide (N2O) byproduct
Chiral Cp<sup>x</sup>Rhodium(III)‐Catalyzed Enantioselective Aziridination of Unactivated Terminal Alkenes
作者:Juanjuan Wang、Mu‐Peng Luo、Yi‐Jie Gu、Yu‐Ying Liu、Qin Yin、Shou‐Guo Wang
DOI:10.1002/anie.202400502
日期:2024.3.18
A chiral cyclopentadienyl-rhodium(III) catalyzedhighly enantioselective aziridination of challenging unactivatedterminalalkenes and N-pivalolyloxy sulfonamides has been developed. This catalytic system demonstrated outstanding catalytic activity and broad functional group tolerance, yielding synthetically important and highly valuable chiral aziridines with good to excellent yields and enantioselectivities
N-hydroxylsulfonamide derivatives as new physiologically useful nitroxyl donors
申请人:Johns Hopkins University School of Medicine
公开号:EP2489350A1
公开(公告)日:2012-08-22
The invention relates to N-hydroxysulfonamide derivatives that donate nitroxyl (HNO) under physiological conditions and are useful in treating and/or preventing the onset and/or development of diseases or conditions that are responsive to nitroxyl therapy, including heart failure and ischemia/reperfusion injury. Novel N-hydroxysulfonamide derivatives release NHO at a controlled rate under physiological conditions, and the rate of HNO release is modulated by varying the nature and location of functional groups on the N-hydroxysulfonamide derivatives.