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II and Related Compounds

DI-m-CHLORO-1,3-DICHLORO-2,4-BIS (CYCLO-HEXYLDIPHEN YLPHO SPKINEyDIPLA.TINUM (II) AND RELATED COMPOUNDS [Pg.240]

Submitted by A. C. SMITHIES, P. SCHMIDT, and MILTON ORCHIN Cheeked by LOUIS F. CENTO FANTIf [Pg.240]

In the following procedure for the preparation of binuclear platinum (II) complexes, tetrachloroethane is used as the solvent, thus eliminating the extraction process and obviating the necessity of adjusting the proportions of the hydrocarbons. [Pg.241]

The method, although general, is illustrated by the preparation of di-/ -dichloro-l,3-dichloro-2,4-bis(cyclohexyldiphenyl-phosphine)diplatinum(II). The product has the structure  [Pg.241]

To a pale yellow solution of 0.739 g. (0.92 mmole) of a mixture of cis- and frans-dichlorobis(cyclohexyldiphenylphosphine)-platinum(II)t in 25 ml. of tetrachloroethane (technical grade) is added 0.292 g. (1.10 mmoles) of platinum(II) chloride. The mixture is gently refluxed (b.p. 146°C.) with continuous stirring for 60 minutes under an atmosphere of nitrogen. The mixture [Pg.241]


Amino-sugars and Related Compounds. Part II. Observations on the Acidic Hydrolysis of Derivatives of 2-Amino-2-deoxy-D-glucose (D-Glucosamine), A. B. Foster, D. Horton, and M. Stacey,... [Pg.31]

Monoalkyltin(IV) compounds can be prepared under suitable conditions from tindl) compounds (44-46). Tin(II) bis(acetylacetonate) (acac) and related compounds react readily with a variety of alkyl bromides or iodides, to give the product RSn(acac)2X, e.g.,... [Pg.4]

Nicotinic acid and related compounds react with l-chloro-2,4-dinitrobenzene in the manner of the cyanogen bromide reaction to yield derivative I, which possibly also decarboxylates at elevated temperature. In alkaline medium this derivative first adds an hydroxyl ion and then undergoes ring opening to yield the colored derivative II. [Pg.71]

The copper(II) complexes of 3-ethoxy-2-oxobutyraldehyde bis(thiosemicarbazone) and related compounds are active in vivo agents [151, 158, 159]. The metal complexes of 2-heterocyclic thiosemicarbazones were evaluated for their cytotoxicities [160, 161]. Further studies have revealed that these ligand s iron and copper complexes are effective inhibitors of DNA synthesis at much lower concentrations than the free thiosemicarbazones without apparent cytotoxicity [127]. Although the iron(III) complex of 2-isoformylquinoline thiosemicarbaz-one, 21, is considerably more active than free 21, the copper(II) complex is only moderately more active [127]. [Pg.22]

For recent symposiums on zirconocene chemistry, see E. Negishi, Recent Advances in the Chemistry of Zirconocene and Related Compounds, Tetrahedron Symposia-in-print No. 57, Tetrahedron 1995, 51 (special issue). R. F. Jordan Metallocene and Single Site Olefin Catalysis, f. Md. Catal. 1998, 128 (special issue) and references cited therein. R. F. Jordan, A. S. Guram, in Comprehensive Organometallic Chemistry II, E. W. Abel, F. G. A. Stone, G. Wilkinson, M. F. Lappeet (eds.), Pergamon Press, Oxford, 1995, Vol. 4, p. 589. [Pg.277]

Makhey D, Gatto B, Chiang Y, Liu A, Liu LF, LaVoie EJ. Coralyne and related compounds as mammalian topoisomerase I and topoisomerase II poisons. Bioorg Med Chem 1996 4 781-791. [Pg.224]

Lasubines I and II are alkaloids containing a 4-arylquinolizidine substructure that have been isolated from plants of the Lythraceae family and have attracted the attention of synthetic chemists for some time. While numerous racemic syntheses of these and related compounds have been reported, only a few enantioselective syntheses are known. Some examples of these syntheses are given below, and the strategies involved in these examples are summarized in Scheme 92. Three of these syntheses involve the creation of the quinolizidine system by formation of one bond at the a- or 7-positions, while the fourth approach is based on a ring transformation associated with a photochemical Beckmann rearrangement. [Pg.58]

Schwarz, G. Bauder, R. Speer, M., et al., Microbial Metabolism of Quinoline and Related Compounds. II. Degradation of Quinoline by Pseudomonas Fluorescens 3, Pseudomonas Putida 86 and Rhodococcus Spec. Bl. Biol. Chem. Hoppe-Seyler, 1989. 370 pp. 1183-1189. [Pg.220]

Mixed condensation of 4-sulfophthalic acid with other substituted phthalic acids (typically >200 °C, metal salt, urea, ammonium molybdate catalyst Figure 6) again gives mixtures.246-248 Routes which lead predominantly to monosulfonic acids of zinc(II) phthalocyanine and related compounds have been described.247,250... [Pg.983]

The reaction of active hydrocarbons, phenols, and related compounds with tetrasulfur tetranitride affords fused thiadiazoles, and this chemistry is well documented in CHEC(1984) <1984CHEC(6)513> and CHEC-II(1996) <1996CHEC-II(4)355>. No recent work has been reported. [Pg.551]

S. Patai (Ed.), The Chemistry of Ketenes, Allenes and Related Compounds, Parts I II, Wiley, New York, 1980. [Pg.468]

Raef SF, Characklis WG, Kessick MA, et al. 1977a. Fate of cyanide and related compounds in aerobic microbial systems—II. Microbial degradation. Water Res 11 485-492. [Pg.265]

Pearce, K.N. and Friedman, M. (1988). Binding of copper(II) and other metal ions by lysinoalanine and related compounds and its significance for food safety, J. Agric. Food Chem., 36, 707-717. [Pg.312]

The review is divided into three sections, (i) the chemistry of scandium and yttrium, (ii) the chemistry of the lanthanide elements, further subdivided into a survey of lanthanide n.m.r. shift reagents and the general chemistry of the elements, and (iii) the chemistry of the actinide elements and uranyl and related compounds. [Pg.451]

A great deal of work has been reported on the synthesis of furans, benzofurans, and related compounds. For the sake of clarity, the subject matter covered in this section has been divided into four parts that are based on different synthetic approaches as presented in Section II.A. [Pg.15]

Hendry JA, Homer RF, Rose FL, et ah Cytotoxic agents. II. Bis-epoxides and related compounds. BrJ Pharmacol 6 235-255, 1951... [Pg.736]

The other important type of reaction leading to the formation of two bonds between a metal and four-atom fragment is addition of carbenoids, i.e. germylenes and stannylenes, to a-dicarbonyl and related compounds. The process can be classified as redox (4 + 1) cycloaddition since the dicarbonyl fragment is reduced while the carbenoid is oxidized. Formally the simplest example of such reactions is the interaction of methylglyoxal with activated tin metal to give a cyclic stannylene, Sn(II) enediolate (see Scheme 34) <83CL1825>. [Pg.884]

An amino or hydroxy group facilitates 5-bromination even in aqueous solution. A -bromosuccinimide (NBS) and molecular bromine are the commonest reagents used. In uracils, cytosines, and barbituric acids, products of both addition and substitution can be identified in aqueous solution, and 5,5-dibromo products are common. In the bromination of uracils, addition products, including covalent hydrates, form rapidly, and the acid-catalyzed dehydration step to 5-bromouracils is much slower. Cytosine and related compounds behave similarly <1994HC(52)1, 1996CHEC-II(6)93>. [Pg.129]


See other pages where II and Related Compounds is mentioned: [Pg.396]    [Pg.773]    [Pg.357]    [Pg.396]    [Pg.773]    [Pg.357]    [Pg.273]    [Pg.33]    [Pg.205]    [Pg.186]    [Pg.27]    [Pg.86]    [Pg.50]    [Pg.133]    [Pg.460]    [Pg.545]    [Pg.28]    [Pg.236]    [Pg.178]    [Pg.530]    [Pg.310]    [Pg.540]    [Pg.1073]    [Pg.104]    [Pg.79]    [Pg.31]    [Pg.247]    [Pg.424]    [Pg.248]    [Pg.194]    [Pg.369]   


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II) Compounds

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