Organotin(IV) azepane dithiocarbamates: Synthesis and characterization of the first organotin(IV) complexes with seven-membered cyclic dithiocarbamates
作者:Ave María Cotero-Villegas、María del Carmen Pérez-Redondo、Marcela López-Cardoso、Alfredo Toscano、Raymundo Cea-Olivares
DOI:10.1080/10426507.2020.1723018
日期:2020.6.2
Abstract We report the synthesis and spectroscopic characterization of the first organotin(IV) complexes with cyclic seven-membered dithiocarbamate ligands: the azepane-1-carbodithioate and the homopiperazine-1,4-bis-carbodithioate with two different organotin entities, di-n-butyltin and tri-cyclohexyltin: [(C4H9)2SnS2CN(CH2)6}2] (3), [(C6H11)3SnS2CN(CH2)6}] (4), and [(C6H11)3Sn}2 (μ-S2CN(C5H10)NCS2)]
4-(N,N-Dialkylthiocarbamoylthio)-5-nitropyrimidines as new potential nitric oxide donors
作者:O. B. Ryabova、E. Yu. Khmel’nitskaya、V. A. Makarov、L. M. Alekseeva、N. B. Grigor’ev、V. G. Granik
DOI:10.1007/s11172-006-0203-5
日期:2005.12
On heating at pH 6.86, 4-(N,N-dialkylthiocarbamoylthio)-5-nitropyrimidines are transformed into dithiolopyrimidines, which are either oxidized to bis(4-dialkylthiocarbamoylpyrimidin-5-yl) disulfides or converted into 4,6-diamino-5-nitropyrimidine derivatives with carbon disulfide elimination. The direction of the reaction is determined by the nature of a substituent in position 2 of pyrimidine and the bulk of the thiocarbamate substituent. Mechanistic schemes for these processes were proposed.
[EN] TOUGHENED VINYL ESTER RESINS<br/>[FR] RESINES DE VINYLESTER TREMPEES
申请人:NOVEON IP HOLDINGS CORP
公开号:WO2005080326A1
公开(公告)日:2005-09-01
A vinyl ester resin is derived from the reaction of an unsaturated acid with an epoxy terminated polymer made from a dithio or a trithio initiator, and optionally from an epoxy resin. The vinyl ester resin can be blended with a miscible toughener and a diluent to provide a time stable system and subsequently crosslink to provide a composition with improved toughening properties.
A simple and convenient method for the synthesis of 1-dialkylaminocarbothioic acid S-[(2,3-epithio)propyl] esters
作者:Kiran Kumar、V. L. Sharma、A. K. Dwivedi
DOI:10.1002/jhet.5570430101
日期:2006.1
A simple and convenient method for the synthesis of 1-dialkylaminocarbothioic acid S-[(2,3-epithio)propyl] ester was developed by the reaction of 1-dialkylaminocarbodithioic acid-sodium salt with 1-chloro-2,3-epoxypropane in water-methanol mixture at room temperature. An intermediate was isolated and characterized, based on which a possible mechanism was proposed.
S-(alpha, alpha'-disubstituted-alpha"-acetic acid) substituted dithiocarbonate derivatives for controlled radical polymerizations, process and polymers made therefrom
申请人:——
公开号:US20040073056A1
公开(公告)日:2004-04-15
Dithiocarbonate derivatives are disclosed, along with a process for preparing the same. The dithiocarbonate compounds can be utilized as initators, chain transfer agents and/or terminators in controlled free radical polymerizations. The dithiocarbonates can be used to produce polymers having narrow molecular weight distribution. Advantageously, the compounds of the present invention can also introduce functional groups into the resulting polymers. The dithiocarbonate compounds have low odor and are substantially colorless.