نتایج جستجو برای: tricarbonyl complex
تعداد نتایج: 784363 فیلتر نتایج به سال:
The protection of conjugated dienes by coordination to the tricarbonyliron fragment offers many potential applications of the resulting complexes to organic synthesis. The preparation of tricarbonyl(h4-1,3-diene)iron complexes is readily achieved by a 1-azabutadiene-catalyzed complexation of the free ligands. An asymmetric catalytic complexation of prochiral cyclohexa-1,3-dienes with pentacarbo...
9 - Aryl - 1 , 5 - bis ( N - phenylamino ) - 4 , 8 - nonadiene - 1 , 3 , 7 - triones and Their Metal
A new se ries of tricarbonyl com pounds, in which the keto groups are at tached to olefinic link ages, have been syn the sized by the re ac tion be tween acetoacetanilide and ar o matic al de hydes (2-chlorobenzaldehyde, 4-chlorobenzaldehyde, 4-hydroxybenzaldehyde and vanillin) un der spec i fied con di tions. Their IR, H NMR and mass spec tral data re vealed that only one of the car bonyl grou...
In vitro metabolic behavior was investigated for two chromium tricarbonyl derivatives of the antischistosomal drug praziquantel (PZQ) with the formula (η(6)-PZQ)Cr(CO)3 (1 and 2), by use of human liver microsomes. The metabolic profiles of the derivatives differ significantly. The optically pure (η(6)-PZQ)Cr(CO)3 derivatives (S, Sp)-1, (R, Rp)-1, (S, Rp)-2, and (R, Sp)-2 were also prepared to a...
A series of [Re(5-R-phen)(CO)3(X)]0/+, where phen = 1,10-phenanthroline, R H, CN, COOH, COONH2, and X Cl or pyridine, was prepared characterized by elemental analyses, NMR, Vis/UV, emission cyclic voltammetry. The complexes absorb in the near-ultraviolet region spectrum, emit between 550 600 nm with lifetimes 150 500 ns, undergo irreversible oxidation at 1.45 V a reversible reduction 1,10-phena...
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