Results 181 to 190 of about 7,279 (220)

1,3-Dipolar Cycloadditions in Aqueous Media

HETEROCYCLES, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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ChemInform Abstract: Enantioselective Copper‐Catalyzed 1,3‐Dipolar Cycloadditions

ChemInform, 2008
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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.
Levi M. Stanley, Mukund P. Sibi
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What Controls the Reactivity of 1,3‐Dipolar Cycloadditions?

Angewandte Chemie International Edition, 2009
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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.
Bernd Engels, Manfred Christl
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1,3‐Dipolar Cycloadditions to Strained Olefins

Helvetica Chimica Acta, 1979
AbstractThe Bredt olefins bicyclo [3.3.1]non‐1‐ene (2), bicyclo [4.2.1]non‐1 (8)‐ene (3), and bicyclo [4.2.1]non‐1 (2)‐ene (4) react rapidly with 1,3‐dipoles such as diazomethane, phenyl azide, and mesitonitrile oxide to yield mixtures of two regioisomeric cycloadducts 10, 11 and 12, respectively.
Martin K. Hohermuth, Konrad B. Becker
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ChemInform Abstract: 1,3‐Dipolar Cycloaddition Reactions of Levoglucosenone.

ChemInform, 1992
AbstractChemInform 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.
Alexander J. Blake, R. Michael Paton, Robert O. Gould, A. C. Forsyth, Tracey A. Cook   +4 more
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ChemInform Abstract: 1,3‐Dipolar Cycloaddition Reactions of Benzylidenecyanoamines.

Chemischer Informationsdienst, 1982
AbstractEinige inter und intramolekulare Cycloadditionsreaktionen der Benzylidencyanobenzylamine (I) werden beschrieben.
Kazunori Ueno, Otohiko Tsuge
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Intramolecular 1,3‐Dipolar Cycloaddition Reactions

Angewandte Chemie International Edition in English, 1976
AbstractThe intramolecular 1,3‐dipolar cycloaddition reaction of suitably functionalized 1,3‐dipoles represents a general scheme for the synthesis of novel fused ring heterocycles. Such reactions of a number of 1,3‐dipoles are summarized and the general outline and potential analogies for these reactions noted. While the immediate aim of this review is
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ChemInform Abstract: 1,3‐Dipolar Cycloadditions to Nitrogen‐Substituted Allenes.

ChemInform, 1990
AbstractOn reaction with the nitrile oxide (II) the title compounds (I) (8 examples) form the monoadducts (III)‐(V) and the diadduct (VI).
BROGGINI, GIANLUIGI, Bruché L., ZECCHI, GAETANO ALDO, Pilati T.   +3 more
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The Reactivity of Addends in the 1,3-Dipolar Cycloaddition Reaction

Russian Chemical Reviews, 1984
The influence of donor-acceptor interactions and localisation energies on the reactivity of addends in the 1,3-dipolar cycloaddition reaction is examined. It is shown that the interactions between the symmetric frontier orbitals and between the antisymmetric frontier orbitals are qualitatively different in (4π+2π)-cycloaddition reactions.
Samuilov Y., Konovalov A.
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Toward the Briarane Core via 1,3-Dipolar Cycloaddition

Organic Letters
The complete C20 framework of brianthein W was established, featuring hydroboration/allylation, to provide the C1-C2 quaternary/tertiary stereoarray with excellent stereocontrol. Intramolecular nitrile oxide cycloaddition (INOC) was adopted as the key transformation to establish the trans-fused 6/10-bicyclic ring system.
Yichen Liu, Jiangang Zhao, Ran Hong
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