نتایج جستجو برای: tris3 bromo acetylacetonato chromiumiii
تعداد نتایج: 9093 فیلتر نتایج به سال:
Reaction of methyl 3-bromo-5-cyanoisothiazole-4-carboxylate with conc. H2SO4 gave 3-bromo-5-carbamoylisothiazole-4-carboxylate in 93% yield. The compound was fully characterized.
The biaryl coupling of substituted aromatic alcohols and the oxidation of p-hydroquinones with molecular oxygen catalyzed by VO(acac)2 were achieved in good to excellent yields.
An equimolar reaction of 5-chlorosalicylaldehyde and 2-bromo-4-chloroaniline yielded the Schiff base ( Z )-2-((2-bromo-4-chlorophenyl)imino)methyl)-4-chlorophenol) (HL), which was used for complexation to Co 2+ , Ni Cu Zn metal salts.
The aim of the work was to establish spectrum biological activity new derivatives 9-bromo-1,2,3,4-tetrahydroacridine due limited amount literature data. In silico prediction selected bromo-derivatives hydrogenated acridines performed using SuperPred 3.0 web resource. obtained results were compared with active drugs that contain acridine cycle in their structure - Tacrine, Amiridine and Amsacr...
در این کار پژوهش بیشتر سنتز ترکیبهای مختلف سه حلقه ای فنل با یک نوع هالوژن و هالوژنهای مختلف و کندن برم از آنها موردنظر است و مشتقهای مختلف از این نوع ترکیبات که در زیر شرح داده شده است سنتز گردیده است . علاوه براین از روشهای سنتزی برای تائید ساختمان ترکیبهای سه حلقه ای استفاده شده است . همچنین سنتز این ترکیبها امکان میدهد که خواص بیولوژیکی و شیمیائی آنها با ترکیبات مشابه دوحلقه ای و چهارحلقه ا...
Abstract Alkyl bromides are used as initiators in most of the atom transfer radical polymerization (ATRP) process and play an important role for controlling ATRP equilibrium. In this work, effect solvent on equilibrium constant ( K ) rate activation k act three isomeric alkyl [namely, N -phenyl(3-bromo-3-methyl)succinimide, -phenyl(3-bromo-4-methyl)succinimide, -phenyl(3-bromomethyl)succinimide...
Synthesis and preliminary biological evaluation of imidazo (2, 1-b) Thiazole derivatives is reported. Under Mannich conditions, a series new were synthesized. Starting from the reaction 2- amino thiazole with 4- bromo phenyl bromide to produce 5-(4-bromo phenyl) thiazoles, following by introduce substituted aminomethyl at position 6-by reacting different aromatic amines under conditions afford ...
the macrocyclic ligands 2,3,5,6-bis{3’-bromo-5’-tert-butyl benzo-5-phenyl benzo} 12c3 (l1), 2,3,5,6-bis{3’-bromo-5’-tert butyl-benzo-5’-phenyl-benzo}15c4 (l2), 2,3,5,6-bis{3’-bromo-5’-tert butyl-benzo-5’-phenyl-benzo}18c5 (l3) have been synthesized and their alkaline metal compounds with naclo4∙h2o and kclo4 have been prepared. chemical formulas of all compounds have been characterized by usin...
A literature survey of the P–C coupling reactions 1,4-and 1,2-bromo-iodobenzenes with diphenylphosphine oxide or diethyl phosphite under different conditions comprising Pd-, Ni-, Cu-catalysis revealed that, depending on experimental details, yields corresponding >P(O)-bromobenzenes were rather diverse and occasionally contradicting. Therefore, reactivity a series 1,4-, 1,3- 1,2-dibromo- brom...
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