نتایج جستجو برای: 2 methylimidazole
تعداد نتایج: 2525412 فیلتر نتایج به سال:
Abstract Flavanones have been prepared by the cyclization of 2'‐hydroxychalcones using acidic reagents, such as H 2 SO 4 , HX, CF 3 COOH, CH H, KF‐celite, or SiO . Treatment with bases, LiOH, KOH, NaOAc, K CO pyridine, Et N, N ‐methylimidazole afforded flavanones. The conversion to flavanones has conducted Co(salpr), Fe(CN) 6 CuO, Ni(Tfacac) Thioflavanones deprotecting and cyclizing S ‐protecte...
Covalent cavitand Zn(II)-porphyrins 17-20 were prepared via multistep syntheses. These host molecules show moderate to excellent binding affinities to N-methylimidazole and pyridine guests. The complexing behavior strongly depends on the spacer's length, number, and rigidity, in addition to the guest size. Cavitand capping and strapping of porphyrins strongly influence the complex formation and...
In this study, a series of novel compounds based on 5-(5-nitrothiophene-2-yl)-1,3,4-thiadiazole possessing (het)aryl thio pendant at C-2 position of thiadiazole ring is developed and evaluated as antileishmanial agents using MTT colorimetric assay. 10 New compounds containing aryl and hetero aryl derivatives, started from thiophene-2-carbaldehyde in five steps, were synthesized in good to excel...
In this study, a series of novel compounds based on 5-(5-nitrothiophene-2-yl)-1,3,4-thiadiazole possessing (het)aryl thio pendant at C-2 position of thiadiazole ring is developed and evaluated as antileishmanial agents using MTT colorimetric assay. 10 New compounds containing aryl and hetero aryl derivatives, started from thiophene-2-carbaldehyde in five steps, were synthesized in good to excel...
UNLABELLED BACKGROUND Phosphorus-containing high performance polymers have aroused wide interest, mainly due to good mechanical properties and their excellent fire resistance. The flexibility of synthetic polyphosphoesters allows the development of polymers in order to obtain solid polymer electrolytes for rechargeable lithium batteries based on solid films with superior fire resistance. R...
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