An electron-transport-type host was synthesized using a benzo[4,5]furo[3,2-d]pyrimidine (BFP) core to develop high triplet energy host. The designed have both the tetraphenylsilyl blocking group and hole-transport-type carbazole group. In device application, used as an mixed with 3,3†-di(9H-carbazol-9-yl)-1,1†-biphenyl (mCBP) in blue phosphorescent organic light-emitting diodes (PhO-LEDs) doped...

An efficient and facile synthetic procedure has been developed for the synthesis of novel series Bis-6-aryl-imidazo[1,2-a]pyridine-2-carboxamide containing 3,3'-((oxybis(ethane-2,1-diyl))bis(oxy))bis(propan-1-amine) derivatives (6a-6j). application Palladium catalyzed Suzuki reaction on amine-(CH2)3-PEG3-(CH2)3-amine linked 6-bromo imidazo[1,2-a]pyridine-2-carboxamide was reported their product...

The electrochemical aspects of interactions between DNA and two organic compounds are discussed herein. Potential DNA targeted compounds, 2-methyl-4-phenyl-benzo[4,5]imidazo[1,2-a]pyrimidine (C1) and 2,3,4-trimethyl-benzo[4,5]imidazo[1,2-a]pyrimidine (C2), were synthesized and their cytotoxic and/or growth inhibitory effects were studied previously. Disposable sensor technology was used to expl...

Synthesis of the title compound,1-(2'-O-methyl-ß-D-ribofuranosyl)-1H-imidazo[4,5-d]pyridazine-4,7(5H,6H)-dione (1), is reported. It was synthesized in four steps, starting from methyl 1-(ß-D-ribofuranosyl)imidazo-4,5-dicarboxylate (2). The 3',5'-hydroxyl groups of 2 was protected with a bis-silylating agent to form 3, which was then methylated to form the corresponding 2'-O-methyl derivative 5....

The title compound, C(13)H(14)N(2)OS(2)·H(2)O, appears in the form of bimolecular aggregate in which mol-ecular components are linked by O-H⋯N hydrogen bonding. The nine-membered imidazo[1,2-a]pyridine system is almost planar, with a mean deviation of 0.026 (1) Å. An intra-molecular C-H⋯O hydrogen bond forms within the imidazo[1,2-a]pyridine system. The crystal packing is consolidated by O-H⋯O ...

In the mol-ecule of the title compound, C(12)H(12)BrN(3)O, the fused-ring system is essentially planar, the largest deviation from the mean plane being 0.0148 (3) Å. The two allyl groups are nearly perpendicular to the imidazo[4,5-b]pyridine plane [C-C-N-C torsion angles of 81.6 (4) and -77.2 (4)°] and point in the same direction. The planes through the atoms forming each allyl group are nearly...

The title compound, C15H14N2S, crystallizes with two independent mol-ecules in the asymmetric unit. The central imidazo[2,1-b][1,3]benzo-thia-zole unit is planar (r.m.s. deviations of 0.010 and 0.008 Å for the two independent mol-ecules). The fused tetra-hydro-hexane ring adopts a half-chair conformation. The phenyl substituent is twisted by 16.96 (13) and 22.89 (12)° relative to the central im...

The reaction of stoichiometric amounts of dialkyl acetylenedicarboxylates with alkyl isocyanides and 5,5-diaryl thiohydantoins in toluene and catalytic amount of p-TSA afforded imidazo[2,1-b][1,3]thiazines in good overall yields

This work includes synthesis a series of some new derivatives triazine from reaction between the sulfur amino acid (L-cysteine) and different aldehydes in dry ethanol to obtain thiazolidine ring as diastereo isomers (Cis Trans)- 2- alkylthiazolidine-4- carboxylic acids (1).
 The (1) suffered esterfication presence drops concentrated sulfuric catalyst give esters :
 ethyl alkylthiazoli...