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Showing 1 to 14 of 14 for “"Cyclic compounds."”.
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The urea adducts of certain esters containing twenty carbons
… complexes with many straight-chained organic compounds. So selective is the formation of these complexes with linear aliphatic compounds that it provides a means of separation form the analogous branched and cyclic compounds. Linear esters derived from normal saturated and unsaturated esters …
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DEVELOPING ENANTIOSELECTIVE CYCLOADDITIONS OF REDOX-ACTIVE-DERIVED REAGENTS: A LATENT STRATEGY TO ESTABLISH MOLECULAR COMPLEXITY
… enantioselective construction of chiral cyclic compounds. Notably, the chiral Lewis-acid-catalyzed Diels-Alder reaction was proved to be an efficient method to establish multi-substituted 6-membered ring system; and the asymmetric Lu’s [3+2] annulation provides an essential strategy to …
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ELECTROCHEMICAL REDUCTION OF CYCLIC AND ACYCLIC BENZYL DISULFIDES
… study, electron transfer (ET) to a series of cyclic and acyclic benzyl disulfides, compounds containing an S-S bond, were studied in N,N-dimethylformamide using the heterogeneous electrochemical techniques of cyclic voltammetry and coulometry. The cyclic disulfides were substituted 2,3- …
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A preliminary study of the characteristic physical properties of chlorinated asphalt
<p>The introduction of chlorine into hydrocarbon compounds produces a product with properties markedly different from those of the original hydrocarbon. Methane, a gas at ordinary conditions, becomes methyl chloride, still a gas but having a higher condensation point than methane, upon the …
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Some Aspects of the Chemistry of Sulphur Halides and Oxyhalides
… and spectral properties of this new class of compounds were examined in an effort to elucidate the role of sulphinyl chlorides as intermediates in the reaction of 1,3- -diketones with thionyl chloride. Ethyl isopropyl ketone afforded a 3~thietanone upon treatment with thionyl chloride, a …
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Development of Alternative Methods to Assess the Toxicity and Bioaccumulation Potential of Chemicals in the Aquatic Environment
… on the development of a list of reference compounds to evaluate non-animal methods to in vivo bioaccumulation studies in fish. The selection of representative chemicals was developed following a novel strategy built from previous criteria proposed for the validation of experimental tests …
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Phenyl and pentafluorophenyl substiuted 1, 3-dio-xolan 2, 4-diones
… carboxylic acid and the potential use of such cyclic compounds as precursors in the synthesis of poly-α-esters investigated. The kinetic behaviour during thermal decomposition of this anhydrocarboxylate series in non-hydroxylic solvents has been studied with particular reference to polymer …
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The synthesis and chemistry of the cyclophanenes and their metal complexes
… toluene via monothiacyclophanes as intermediate compounds, was developed. By this method, anti-5,8,13-16-tetramethyl [2,2] (1,3)cyclophan-1-ene, 56b, and anti-4,6,8,12,14,16-hexa-methyl [2,2] (1,3)cyclophan-1-ene, 56c, were first synthesized as well as three new monothiacyclophanes, …
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The silver cation assisted rearrangement of pi-bromotricyclene
Thesis (M.S.)--Michigan State University. Dept. of Chemistry, 1969
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Synthesis of macrocyclic azapolyethers
Not available
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Synthesis and properties of novel cage-functionalized crown ethers and cryptands.
A novel cryptand was synthesized which contained a 3,5-disubstituted-4- oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11] dodecane "cage" moiety. In alkali metal picrate extraction experiments the cryptand exhibited high avidity towards Rb+ and Cs+, when compared with the corresponding model compound. A …