Results 171 to 180 of about 23,273 (217)

Boryl Azides in 1,3-Dipolar Cycloadditions

The Journal of Organic Chemistry, 2014
The 1,3-dipolar cycloaddition reaction of boron azides with alkynes has been investigated experimentally and computationally. At room temperature pinBN3 (pin = pinacolato) reacts with the strained triple bond of cyclooctyne with formation of an oligomeric boryl triazole.
Matthias, Müller, Cäcilia, Maichle-Mössmer, Holger F, Bettinger   +2 more
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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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Transition Metal Complexation in 1,3-Dipolar Cycloadditions

HETEROCYCLES, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
BROGGINI, GIANLUIGI, MOLTENI G, TERRANEO A, ZECCHI, GAETANO ALDO   +3 more
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ChemInform Abstract: 1,3‐Dipolar Cycloaddition

ChemInform, 2010
AbstractReview: 304 refs.
Takuya Hashimoto, Keiji Maruoka
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1,3-dipolar cycloadditions to oxidopyraziniums

Tetrahedron Letters, 1987
Abstract 1,5-Dimethyl-3-oxidopyrazinium (6) undergoes cycloadditions with methyl acrylate, acrylonitrile, diethyl maleate, maleimide, methyl propiolate and diethyl acetylenedicarboxylate.
Miklos Kiss, John Russell-Maynard, John A. Joule   +2 more
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1,3‐Dipolar cycloadditions to alkyldicyanamides

Recueil des Travaux Chimiques des Pays-Bas, 1981
AbstractThe 1,3‐dipoles 2,4,6‐trimethylbenzonitrile oxide and benzyl azide react with alkyldicyanamides (1) to give the 3,5‐disubstituted 1,2,4‐oxadiazoles 2 and the 1,5‐disubstituted tetrazole 4, respectively, by (3 + 2)‐cycloaddition. The structure of 4 has been determined by a single crystal X‐ray analysis.
P. H. Benders, D. N. Reinhoudt, D. M. W. van den Ham   +2 more
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1,3-Dipolar Cycloadditions

2012
R. P. Singh, L. Deng
  +4 more sources

1,3-Dipolar Cycloaddition

2012
K. Hof, K. M. Lippert, P. R. Schreiner
  +4 more sources

Concertedness of 1,3-dipolar cycloadditions

Journal of Chemical Education, 1984
The 1,3-dipolar cycloaddition is the union of a 1,3-dipole with a multiple bond system (a dipolarophile) to form a five-membered ring; the process is regarded as one of the most general methods for the synthesis of five-membered heterocycles.
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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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