Synthesis of di- and triazido derivatives of 2,4,6-triphenylpyridine

EPR Studies on Branched High‐Spin Arylnitrenes

“…[16] X-band EPR spectra were recorded with a Bruker-Elexsys E500 EPR spectrometer with an ER077R magnet (75 mm gap between pole faces), an ER047 XG-T microwave bridge, and an ER4102ST resonator with a TE 102 cavity. [16] X-band EPR spectra were recorded with a Bruker-Elexsys E500 EPR spectrometer with an ER077R magnet (75 mm gap between pole faces), an ER047 XG-T microwave bridge, and an ER4102ST resonator with a TE 102 cavity.…”

“…Triazide 3 was synthesized according to a literature procedure. [16] X-band EPR spectra were recorded with a Bruker-Elexsys E500 EPR spectrometer with an ER077R magnet (75 mm gap between pole faces), an ER047 XG-T microwave bridge, and an ER4102ST resonator with a TE 102 cavity. 2-Methyltetrahydrofuran (2-MTHF) glasses doped with triazide 3 were prepared by cooling a 4 mm o.d.…”

Studies on –SO3H functionalized Brønsted acidic imidazolium ionic liquids (ILs) for one-pot, two-step synthesis of 2-styrylquinolines

“…However, most of the 2-styrylquinolines are obtained from the acid or base catalyzed condensation of 2-methyl quinoline derivatives with excess amount of appropriate aldehydes in acetic anhydride at high temperature (100-140° C) which produce only moderate yields of products during longer reaction time (20h) [23]. Few modified procedures utilized microwave energy to generate the title compound in good to moderate yield from 2-methyl quinoline using ZnCl 2 , Ac 2 O/SiO 2 as catalyst in neat conditions at high temperature [24][25][26][27][28][29]. They obtained the key intermediate quinalidine from Friedländer, Doebner-von Miller,Combes, and Pfitzinger reactions [30][31][32].…”

Theoretical Investigation of 4,4′,6,6′‐Tetra(azido)azo‐1,3,5‐triazine‐N‐oxides and the Effects of N→O Bonding on Organic Azides

“…[9][10][11][12][13][14][15] Polyazido heteroaromatic compounds have relatively high heats of formation, as one azido group adds about 87 kcal mol À1 of endothermicity to a hydrocarbon compound; [16] thus, despite many difficulties, many fascinating organic azides have been prepared and structurally characterized over the last few decades (Scheme 1). [10,11,[17][18][19][20][21][22][23][24][25] In addition, the azo linkage is known to improve the properties of this kind of compounds; it not only increases the heat of formation of the compounds, but also desensitizes them. [5] 4,4',6,6'-tetraA C H T U N G T R E N N U N G (azido)azo-1,3,5-triazine (TAAT) is a typical example of polyazido-azo-heterocyclic systems, which possesses high nitrogen content (79.5 %) and the largest heat of formation (2171 kJ mol À1 ) among all reported energetic ma-Abstract: A family of 4,4',6,6'-tetra-A C H T U N G T R E N N U N G (azido)azo-1,3,5-triazine-N-oxides was designed and investigated by theoretical method.…”