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Addition Patterns (addition + pattern)

Distribution by Scientific Domains
Chemistry100%
Distribution within Chemistry
General & Introductory Chemistry50%

Selected Abstracts

ChemInform Abstract: Regioselective Formation of Highly Functionalized Heterofullerenes: Pentamalonates of RC59N Involving an Octahedral Addition Pattern.

CHEMINFORM, Issue 43 2001
Frank Hauke
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

C80Cl12: A Chlorine Derivative of the Chiral D2 -C80 Isomer,Empirical Rationale of Halogen-Atom Addition Pattern

CHEMISTRY - A EUROPEAN JOURNAL, Issue 8 2009
Kalin
Abstract Welcome to the family! The constitution of the chiral D2 -C80 fullerene has been confirmed through single-crystal X-ray analysis of the chlorinated C80Cl12. The addition pattern of the chlorine atoms in the structure of C80Cl12 together with other structures of halogenated higher fullerenes is discussed. A stepwise principle of higher fullerene reactivity is proposed. Unusual short intermolecular chlorine,chlorine contacts are reported. [source]

ChemInform Abstract: Hexakis-Adducts of [60]Fullerene with Different Addition Patterns: Templated Synthesis, Physical Properties, and Chemical Reactivity.

CHEMINFORM, Issue 34 2001
Jean-Pascal Bourgeois
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

Cyclic 2:1 and 1:2 Aldehyde-to-Acetone Byproduct Adducts in Aldol Reactions Promoted by Supported Proline-Incorporated Catalysts

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 7 2009
Lital Tuchman-Shukron
Abstract Significant amounts of cyclic byproducts of aldol addition with stoichiometry deviating from a regular 1:1 addition pattern were formed when the reaction of acetone with aromatic aldehydes was promoted by polymer-supported proline-incorporated catalysts. These adducts, unprecedented in the context of the aldol reaction, are most probably formed via a multistep domino mechanism.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source]

The Orthogonal (e,e,e)-Tris-Adduct of 9,10-Dimethylanthracene with C60 -Fullerene: A Hidden Cornerstone of Fullerene Chemistry.

HELVETICA CHIMICA ACTA, Issue 8 2008
Preliminary Communication
Abstract Tris(9,,10,-dimethyl[9,10]ethanoanthracene[11,,12,:,1,9;11,,12,:,16,17;11,,,,12,,,:,30,31])[5,6]fullerene C60, the orthogonal (e,e,e)-tris-adduct of C60 and 9,10-dimethylanthracene, was obtained from [4+2]-cycloaddition (Diels,Alder reaction) at room temperature. The thermally unstable orange red (e,e,e)-tris-adduct was purified by chromatography and was isolated in the form of red monoclinic crystals. Its C3 -symmetric addition pattern was established spectroscopically. Its structure could be further investigated by single crystal X-ray diffraction. The (e,e,e)-tris-adduct of C60 and 9,10-dimethylanthracene has earlier been suggested as intermediate and reversibly formed critical component in ,template directed' addition reactions of C60. This previously elusive compound has now been isolated and structurally characterized. [source]

Synthesis and Structural Characterization of Four Isomers of C70(n -C3F7)8

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 19 2008
Tatyana Mutig
Abstract The first four isomers of C70(n -C3F7)8 synthesized by the ampoule reaction of C70 with n -C3F7I, isolated by HPLC, and characterized by X-ray crystallography possess unprecedented addition patterns among C70X8 compounds. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source]

Synthesis of trans -1, trans -2, trans -3, and trans -4 Bisadducts of C60 by Regio- and Stereoselective Tether-Directed Remote Functionalization

CHEMISTRY - A EUROPEAN JOURNAL, Issue 8 2005
Sergey Sergeyev Dr.
Abstract The double Bingel reaction of fullerene C60 with bismalonates attached to a Tröger base derived tether afforded trans -1, trans -2, trans -3, and trans -4 bisadducts with excellent regioselectivity. In particular, enantiomerically pure bisadducts with inherently chiral trans -2 or trans -3 addition patterns were prepared starting from enantiomerically pure bismalonates. The absolute configuration of the trans -2 and trans -3 bisadducts was established from their CD spectra. The excellent diastereoselectivity in the double additions to give the trans -2 bisadducts is particularly remarkable given the large distance between the two reacting bonds in opposite hemispheres of the fullerene that is spanned by the tether. Now, all inherently chiral double addition patterns are readily available by tether-directed functionalization using appropriate chiral, nonracemic spacers. [source]