Results 21 to 30 of about 1,566 (134)
Acenaphtho[5,6-cd]1,2,6-thiadiazine
P. Flowerday, M.J. Perkins
openaire +2 more sources
1,2,6-Thiadiazine 1-Oxides : Unsaturated Three-Dimensional S,N-Heterocycles from Sulfonimidamides
Unprecedented three-dimensional 1,2,6-thiadiazine 1-oxides have been prepared by an aza-Michael-addition/cyclization/condensation reaction sequence starting from sulfonimidamides and propargyl ketones.
Wolter, Nadja Anna +5 more
core +2 more sources
3-Chloro-5-(3-n-hexylthien-2-yl)-4H-1,2,6-thiadiazin-4-one
Stille coupling of 5-chloro-4-oxo-4H-1,2,6-thiadiazin-3-yl trifluoromethanesulfonate (7) with tributyl(3-n-hexylthien-2-yl)stannane and Pd(Ph3P)2Cl2 in PhMe at ca. 20 °C, for 24 h gave 3-chloro-5-(3-n-hexylthien-2-yl)-4H-1,2,6-thiadiazin-4-one (9) with a
Andreas S. Kalogirou +1 more
doaj +1 more source
5,5′-Thiobis(3-methoxy-4H-1,2,6-thiadiazin-4-one)
The reaction of 3-chloro-5-methoxy-4H-1,2,6-thiadiazin-4-one (9) with Na2S·9H2O (0.5 equiv) in tetrahydrofuran (THF) at ca. 20 °C for 20 h gives 5,5′-thiobis(3-methoxy-4H-1,2,6-thiadiazin-4-one) (10) in a 44% yield as yellow needles.
Andreas S. Kalogirou +1 more
doaj +1 more source
3,5-Bis[5-(thiazol-2-yl)thien-2-yl]-4H-1,2,6-thiadiazin-4-one
Stille coupling of 3,5-bis(5-bromothien-2-yl)-4H-1,2,6-thiadiazin-4-one (10) with 2-(tri-n-butylstannyl)thiazole and Pd(Ph3P)2Cl2 in PhMe, at ca. 110 °C, for 2 h, gave 3,5-bis[5-(thiazol-2-yl)thien-2-yl]-4H-1,2,6-thiadiazin-4-one (9) in 81% yield.
Andreas S. Kalogirou +1 more
doaj +1 more source
5 pags., 3 figs., 8 tbs.In a previous paper (1) we carried out a comparative study between the physicochemical properties of 1,2,6-thiadiazine 1,l-dioxide derivatives and related pyrazoles.
Ochoa, Carmen +5 more
core +1 more source
The synthesis, pharmacological evaluation, and structure-activity relationships of a new class of bronchodilator agents, derivatives of pyrazino[2,3-c][1,2,6]thiadiazine 2,2-dioxides are described.
Alkorta, Ibon +4 more
core +1 more source
Selective procedures for the synthesis of 6- and of 7-monosubstituted derivatives of pyrazinoI2,3-c̱|-1 ,2,6- thiadiazine 2,2-dioxide and their reactions with N-bromosuccinimide are reported.
Alkorta Ibon +3 more
doaj +1 more source
The synthesis, pharmacological evaluation, and structure−activity relationships of a new class of bronchodilator agents, derivatives of pyrazino[2,3-c][1,2,6]thiadiazine 2,2-dioxides are described.
Concepción García (363008) +4 more
core +1 more source
A 4H-1,2,6-thiadiazine motif as a new acceptor for D–A conjugated polymers.
Vasilis G. Gregoriou +8 more
core +1 more source

