A metal-centered cycloaddition is a subtype of the more general class of cycloaddition reactions. In such reactions "two or more unsaturated molecules...

diene. Other cycloaddition reactions exist: (4+3) cycloadditions, [6+4] cycloadditions, [2 + 2] photocycloadditions, metal-centered cycloaddition and [4+4]...

olefins and elimination side reactions. Some success has been found with non-metal-catalyzed cycloadditions, such as the reactions using dipolarophiles that...

cycloaddition is a chemical reaction between a 1,3-dipole and a dipolarophile to form a five-membered ring. The earliest 1,3-dipolar cycloadditions were...

Metal-catalyzed cyclopropanations are chemical reactions that result in the formation of a cyclopropane ring from a metal carbenoid species and an alkene...

of a pericyclic reaction with a concerted mechanism. More specifically, it is classified as a thermally allowed [4+2] cycloaddition with Woodward–Hoffmann...

use of "click reactions", a set of simple, biocompatible chemical reactions that meet specific criteria like high yield, fast reaction rates, and minimal...

sigmatropic reaction such as the Cope rearrangement. Cyclic rearrangements include cycloadditions and, more generally, pericyclic reactions, wherein two...

Desulfonylation reactions are chemical reactions leading to the removal of a sulfonyl group from organic compounds. As the sulfonyl functional group is...

undergo intramolecular radical-anion hetero-Diels–Alder reactions more rapidly than [2+2] cycloaddition. Similarly, electron-rich styrenes participate in intra-...

as nucleophilic partners in cross-coupling reactions. Typically, nucleophilic reagents in coupling reactions tend to be of the organometallic variety,...

via rearrangement reactions. Besides olefin metathesis (described above), many pericyclic reactions can be used such as the ene reaction and the Cope rearrangement...

provide the other coupling partner. The Stille reaction is one of many palladium-catalyzed coupling reactions. R 1 − Sn ( Alkyl ) 3 + R 2 − X   → ligand set...

1021/cr950015t. PMID 11848759. Welker, Mark E. (1992). "3 + 2 Cycloaddition reactions of transition-metal 2-alkynyl and .eta.1-allyl complexes and their utilization...

complexes: Versatile catalysts for enantioselective cycloaddition, Aldol, Michael, and carbonyl ene reactions". Acc. Chem. Res. 33 (6): 325–35. doi:10.1021/ar960062n...

Chapman, K. T.; Bisaha, J. (1984). "New Asymmetric Diels-Alder Cycloaddition Reactions. Chiral α,β-Unsaturated Carboximides as Practical Chiral Acrylate...

attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles. Many classical reactions involving carbon–carbon or carbon–heteroatom...

with one triazole unit bridging two metal centers, and is an effective catalyst for the 'click' cycloaddition reaction. The structure of the complex of TBTA...

products. Cycloadditions can occur on metal vinylidenes at either the M=Cα or Cα=Cβ bonds. These can serve in both [2+2] and [4+2] cycloadditions with a...

different kinds of reactions, such as [2+1] and [2+2] cycloaddition reaction with different kinds of unsaturated molecules, [4+1] cycloaddition with 1,3-dimethyl-1...

thermodynamics and kinetics of these cycloaddition reactions which has played a vital role in continuing to improve the reaction. There are two methods for activating...

chemical reaction, cases where phosphetanes are used as the active reagents in chemical reactions, and cases where phosphetanes are ligated to a metal that...

efficiently has made this reaction particularly attractive synthetically. (1) The metal-free version of the [6+4] cycloaddition takes place through a concerted...

The term "captodative ethylenes" has been used in the context of cycloaddition reactions involving captodative radical intermediates – for example, the...

prepare. Various reactions have been adopted in the field of topochemical polymerisation, such as [2+2], [4+2], [4+4], and [3+2] cycloaddition, linear addition...

chain of alkyne partner could trap the resulting ketene through a [2+2] cycloaddition or nucleophilic addition respectively. This strategy was applied for...

arm largely losing coordination with the bismuth(III) center. A similar cycloaddition reaction between Dostál's bismuthinidene and methyl propiolate yields...

six-membered rings. The C 60 molecules can also be coupled through a [2+2] cycloaddition, giving the dumbbell-shaped compound C 120. The coupling is achieved...

The [4+4] Photocycloaddition is a cycloaddition reaction in which two unsaturated molecules connect via four atoms from each molecule (hence "4 + 4") to...

pressure. Alkylidene ketenes can readily dimerize and participate in cycloaddition reactions. Often orange or red in color, these dimers can be generated both...