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Heterocycles from Cycloaddition Reactions
The synthesis of heterocyclic compounds via catalytic cycloaddition reactions of metallocarbenes is robust, atom-economic, and often allows access to...
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Cycloaddition Reactions of Group 6 Fischer Carbene Complexes
Group 6 heteroatom-stabilised carbene complexes (Fischer carbene complexes) offer many interesting possibilities to build rings (carbocycles and...
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Catalytic asymmetric (3 + 3) cycloaddition between different 2-indolylmethanols
The catalytic asymmetric (3 + 3) cycloaddition between different 2-indolylmethanols has been established, in which a series of chiral indole-fused...
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Organocatalysis in 1,3-Dipolar Cycloaddition Reactions (A Review)
AbstractOne of the promising directions in 1,3-dipolar cycloaddition is the implementation of these reactions under organocatalysis conditions, which...
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Organocatalytic asymmetric [2 + 2] cycloaddition of alkynes with quinones
A chiral phosphoric acid catalyzed enantioselective [2 + 2] cycloaddition of alkynylindols or alkynylnaphthols with quinones is disclosed. A class of...
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Asymmetric Organocatalytic [2 + 2] Cycloaddition Affording Bicyclo[n.2.0]alkenes
The development of an organocatalytic asymmetric [2 + 2] cycloaddition to synthesize optically active bicyclo[n.2.0]alkene is described. Chiral...
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Crystal facet-dependent CO2 cycloaddition to epoxides over ZnO catalysts
With regard to green chemistry and sustainable development, the fixation of CO 2 into epoxides to form cyclic carbonates is an attractive and...
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Copper-catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylides with β-trifluoromethyl-substituted alkenyl heteroarenes
Copper-catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylides and β-trifluoromethyl-substituted alkenyl heteroarenes was developed for...
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Synthesis of azahexabenzocoronenium salts through a formal [3 + 3] cycloaddition strategy
Heteroatom-embedded hexa- peri -hexabenzocoronene (HBC) molecules exhibit interesting properties depending on the number and position of the introduced...
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3-Cyanothiete 1,1-dioxide: synthesis and cycloaddition reactions
A new small reactive molecule – 3-cyanothiete 1,1-dioxide – is introduced into preparative organic chemistry. The title compound has been prepared...
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Synthesis of 5-ethynylisoxazoles based on 1,3-dipolar cycloaddition reactions of nitrile oxides with conjugated diynes
New 5-ethynylisoxazoles were obtained via 1,3-dipolar cycloaddition reactions of nitrile oxides with buta-1,3-diynes. The cycloaddition proceeds...
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Recent advances in cycloaddition of CO2 with epoxides: halogen-free catalysis and mechanistic insights
The atom-economical cycloaddition of CO 2 with epoxides to synthesize cyclic carbonates is a promising route for valuable utilization of CO 2 ....
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Palladium-Catalyzed Cycloaddition Reactions of Arynes
The transition-metal-catalyzed cyclotrimerization of alkynes has been used extensively in synthesis during the past 25 years. However, until recently...
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Arenes participate in 1,3-dipolar cycloaddition with in situ-generated diazoalkenes
The venerable 1,3-dipolar cycloaddition has been widely used in organic synthesis for the construction of various heterocycles. However, in its...
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Molecular docking, expounding the regiospecificity, stereoselectivity, and the mechanism of [5+2] cycloaddition reaction between ethereal ether and oxidopyrylium
Application of molecular electron density theory (MEDT) to investigate the [5+2] cycloaddition reaction between oxidopyrylium and ethervinylether, we...
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Catalyst-free rapid crystallization-induced stereoselective three-component [3 + 2] cycloaddition to polycyclic spirooxindoles under microwave irradiation
[3 + 2] Cycloaddition reactions are powerful tools to build alkaloid skeleton compounds. While maleimides are common dipolarophiles, the successful...
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Fragmentation and [4 + 3] cycloaddition in sodorifen biosynthesis
Terpenes constitute the largest class of natural products. Their skeletons are formed by terpene cyclases (TCs) from acyclic oligoprenyl diphosphates...
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Indole as a Versatile Building Block in Cycloaddition Reactions: Synthesis of Diverse Heterocyclic Frameworks
Indole, a ubiquitous and structurally versatile aromatic compound, has emerged as a key player in the synthesis of diverse heterocyclic frameworks...
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Effect of the structure of alkylammonium halides on the outcome of carbon dioxide cycloaddition to oxiranes
The effect of structure of alkylammonium halides on the outcome of cycloaddition of carbon dioxide to oxiranes was studied. The conversion of...
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Competition of (3+2) annulation and (3+2) cycloaddition in the reaction of alkenes with donor-acceptor cyclopropanes
Lewis acid-initiated reaction of (het)aryl-substituted donor-acceptor cyclopropanes with styrenes was studied. The initiation of the process by tin( IV ...