Results 31 to 40 of about 128 (98)
(E)-N-[Cyclopentyl(morpholin-4-yl)methylidene]-4-fluorobenzenesulfonamide
The title compound, C16H21FN2O3S, was obtained from the reaction between sulfonyl azide, cyclohexanone and morpholine. The bond lengths at the amidine N—C—N grouping are similar [1.326 (3) and 1.338 (3) Å], indicating significant conjugation.
Ilya Efimov+3 more
doaj +1 more source
Continuous-Flow Synthesis of Thioureas, Enabled by Aqueous Polysulfide Solution
We have developed the continuous-flow synthesis of thioureas in a multicomponent reaction starting from isocyanides, amidines, or amines and sulfur. The aqueous polysulfide solution enabled the application of sulfur under homogeneous and mild conditions.
András Gy. Németh+5 more
doaj +1 more source
n ...
openaire +3 more sources
Regiochemistry of cyclocondensation reactions in the synthesis of polyazaheterocycles
The syntheses of several polyazaheterocycles are demonstrated. The cyclocondensation reactions between β-enaminodiketones [CCl3C(O)C(=CNMe2)C(O)-CO2Et] and aromatic amidines resulted in glyoxalate-substituted pyrido[1,2-a]pyrimidinone, thiazolo[3,2-a ...
Patrick T. Campos+10 more
doaj +1 more source
The Synthesis of Dicationic Extended Bis-Benzimidazoles
The synthesis of extended dicationic bis-benzimidazoles starting from trans-1,2-bis(4-cyanophenyl)ethene and trans-1,2-bis(4-cyanophenyl)cyclopropane is reported. The target diamidines show significant in vitro activity against B. subtilis.
David W. Boykin+2 more
doaj +1 more source
An isofagomine analogue with an amidine group in the 1,6-position
The synthesis of an isofagomine analogue with an amidine group in the 1,6-position is described. Density functional theory calculations showed that this compound has a remarkably different charge distribution compared with isofagomine.
I. Caroline Vaaland Holmgard+9 more
doaj +1 more source
1,3-Dipolar Cycloaddition (Part II): Three-Component Cu(I) Catalysed Click Reactions [PDF]
The Cu(I) catalysed reaction of sulfonyl or phosphoryl azide and terminal alkyne obtains a ketenimine intermediate that reacts with nucleophiles like water, alcohols, amines, imines, pyrroles or indoles producing corresponding amides, imidates, amidines ...
Krstulović L. +4 more
doaj +1 more source