Results 11 to 20 of about 8,177 (163)
Triazines, Tetrazines, and Fused Ring Polyaza Systems
, 2012 The review covers work published in the calendar year 2011. Novel reaction chemistry and new ring synthetic methods for 1,2,3-triazines, 1,2,4-triazines, 1,3,5-triazines, tetrazines, and purines are reviewed.
Prokhorov, Anton M. +3 more
core +1 more source
, 2017 A new, three-step, telescoped reaction sequence for the regioselective conversion of N-tosyl hydrazones and aziridines to 3,6-disubstituted and 3,5,6-trisubstituted 1,2,4-triazines is described. The process involves an efficient nucleophilic ring opening
Lorène Crespin +14 more
core +1 more source
Synthesis of U reido-s-triazines [PDF]
, 1968 Ureido-s-triazines were prepared by the reaction of melamines with ureas. When amines were mixed in this reaction mixture,substituted ureido-s-trazines were obtained.
NISHIKAWA, Akihumi +7 more
core +1 more source
Synthesis and pharmacological evaluation of new fluorine substituted pyrimido[1,2-b][1,2,4]triazines and [1,3,5]-triazino-[1,2-b][1,2,4]triazines derived as CDK2 potential inhibitors [PDF]
, 2020 New fluorine-substituted polyfunctional pyrimido-[1,2-b]-[1,2,4]triazines and [1,3,5]-triazino[1,2-b]-[1,2,4]triazines were synthesized via the reaction between 3-amino-6-(2-aminophenyl)-1,2,4-triazin-5(2H)-one with polyfunctional oxygen/sulfur/nitrogen ...
Alotaibi, Fatimah, Bakhotmah, Dina
core +1 more source
Cycloadditions of Noncomplementary Substituted 1,2,3-Triazines
, 2015 : The scope of the [4 + 2] cycloaddition reactions of substituted 1,2,3-triazines, bearing noncomple-mentary substitution with electron-withdrawing groups at C4 and/or C6, is described. The studies define key electronic and steric effects of substituents
Dale L. Boger (1306542) +9 more
core +1 more source
Impact of Solvent and Protonation State on Rotational Barriers in [s]-Triazines
Amine-substituted [s]-triazines display hindered rotation around the triazine-N bond. While this barrier, ΔG‡, has been measured to be between 15.1 and 17.7 kcal/mol for neutral triazines, the impacts that solvent and protonation state have not been ...
Hongjun Pan (1718257) +2 more
core +1 more source
Isomeric triazines exhibit unique profiles of bioorthogonal reactivity [PDF]
, 2019 Expanding the scope of bioorthogonal reactivity requires access to new and mutually compatible reagents. We report here that 1,2,4-triazines can be tuned to exhibit unique reaction profiles with biocompatible strained alkenes and alkynes.
Long, Zane G +16 more
core +1 more source
Crosslinking of Polyolefins in the Presence of New s-Triazines
, 1975 In the crosslinking of polyolefins (such as polyethylene, ethylene-propylene copolymers, and ethylene-(vinyl acetate) copolymers), multiply unsaturated s-triazines (such as triallylcyanurate (TAC), 2-alkylamino-4,6-diallyloxy-s-triazines, and the bridged
R. Wiedenmann, H. Ahne, W. Kleeberg
core +1 more source
Nucleophilic Aromatic Substitution of 5Bromo-1,2,3-triazines with Phenols
, 2022 Nucleophilic aromatic substitution (SNAr) reaction in classic textbook is a stepwise mechanism, and few examples of concerted reactions have been reported.
Shanshan Li +17 more
core +1 more source
, 1982 Department of Chemistry, Nagpur University, Nagpnr-440 010 Manuscript received 2 May 7981, revised 17 December 1981, accepted 2 February 1982 New synthetic procedures are reported for the preparation of 2,4-dithio-3,5- diaryl-6-phenylimino-hexahydro-1 ...
(Miss) MANIK W. AMBBKAR +3 more
core +1 more source