Topic
Triazene
About: Triazene is a research topic. Over the lifetime, 759 publications have been published within this topic receiving 8714 citations. The topic is also known as: Triazene cleavage & 1-triazene.
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TL;DR: In this article, four new polymeric supports with 3-and 6-carbon atom spacers and triazene linkers derived from meta-and para-aminophenol were synthesized from commercial Merrifield polymer.
23 citations
Patent•
16 Dec 1993TL;DR: In this paper, the authors describe novel catalysts for the addition of Si-bonded hydrogen atoms onto an aliphatic multiple bond, in which the catalysts are activated by heating at temperatures of 50° to 250° C., by irradiation with light, by addition of Bronsted acids and/or by adding acid-forming agents.
Abstract: Novel catalysts of the general formula MX.sub.a Y.sub.b, in which M is Pt, Pd, Rh, Ru, Os or Ir, X is a triazene, tetrazene, tetrazadiene or pentazadiene ligand, Y is a ligand selected from Cl, Br, I, NH 3 , P(C 2 H 5 ) 3 , P(C 6 H 5 ) 3 , H, CO, 1,5-cyclooctadiene, pyridine, bipyridine, acetate, acetylacetonate, phenylnitrile, ethylenediamine, acetonitrile, 2,5-norbornadiene, nitrate, nitrite, H 2 O, benzene, diphenylphosphinoethane and 1,3-divinyl-1,1,3,3-tetramethyldisiloxane, a is 1, 2, 3 or 4 and b is 0 or an integer from 1 to 6, are described. The catalysts promote the addition of Si-bonded hydrogen onto an aliphatic multiple bond, in which the catalysts are activated by heating at temperatures of 50° to 250° C., by irradiation with light, by addition of Bronsted acids and/or by addition of acid-forming agents. The catalysts are used in addition crosslinking organopolysiloxane compositions and for the reaction of organosilicon compounds containing Si-bonded hydrogen atoms with organic compounds containing aliphatic multiple bonds.
23 citations
TL;DR: In this article, the synthesis and photoreactions of polyesters containing the photolabile triazene group (Ph-N=N-NR 2 ) as well as photocrosslinkable units based on substituted cinnamylidene malonyl moieties are reported.
Abstract: The synthesis and photoreactions of polyesters containing the photolabile triazene group (Ph-N=N-NR 2 ) as well as photocrosslinkable units based on substituted cinnamylidene malonyl moieties are reported. The polyesters were obtained by reacting a triazene containing difunctional alcohol with different substituted cinnamylidene malonic acid dichlorides. Irradiation at A > 395 nm enables selective photocrosslinking of the cinnamylidene malonyl ester units via [2 + 2] π-cycloaddition without affecting the triazene units. The photocrosslinking reaction of the triazene containing polyesters as well as triazene-free reference polyesters were investigated by UV and IR spectroscopy. After selective photocrosslinking the irradiated polymers became insoluble and no longer exhibited a T g below decomposition temperature. The crosslinked triazene containing polyesters show strong absorption at A = 308 nm and are therefore interesting candidates for applications using XeCl excimer laser ablation.
22 citations
TL;DR: A range of triazene derivatives were synthesized and investigated as prodrug candidates for melanocyte-directed enzyme prodrug therapy (MDEPT) and the identification of the main peak formed after the tyrosinase reaction was attempted by LC-MS and the conversion of prodrug to the quinone was confirmed.
22 citations
TL;DR: In this article, 1-Alkyltriazolines are defined as five-membered cyclic triazenes containing the unusual Z-configuration for the triazene moiety, which leads to the formation of corresponding 1-alkylaziridines and lesser amounts of 2-(alkylamino)ethanols, alkylamines, and acetaldehyde.
Abstract: 1-Alkyltriazolines are five-membered cyclic triazenes containing the unusual Z-configuration for the triazene moiety. The hydrolytic decomposition of these compounds in aqueous or mixed acetonitrile-aqueous buffers leads predominantly to the formation of the corresponding 1-alkylaziridines and lesser amounts of 2-(alkylamino)ethanols, alkylamines, and acetaldehyde. The latter two products presumably result from hydrolysis of a rearrangement product, N-ethylidenealkylamine. Neither the nature of the 1-alkyl group nor the pH of the medium greatly influences the product distribution, although decomposition in purely aqueous buffers slightly reduces the aziridine yields
22 citations