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With Carbenes

Reaction of pyrrole with carbenes yields enlarged ring systems as well as 2-formylpyrrole [1003-29-8] (40). [Pg.357]

Furan and thiophene undergo addition reactions with carbenes. Thus cyclopropane derivatives are obtained from these heterocycles on copper(I) bromide-catalyzed reaction with diazomethane and light-promoted reaction with diazoacetic acid ester (Scheme 41). The copper-catalyzed reaction of pyrrole with diazoacetic acid ester, however, gives a 2-substituted product (Scheme 42). [Pg.62]

Other non-oxidative procedures have also been used to deaminate aziridines. For example, aziridines react with carbenes to yield ylides which subsequently decompose to the alkene. Dichlorocarbene and ethoxycarbonylcarbene have served as the divalent carbon source. The former gives dichioroisocyanides, e.g. (281), as by-products (72TL3827) and the latter yields imines (72TL4659). This procedure has also been applied to aziridines unsubstituted on the nitrogen atom although the decomposition step, in this case, is not totally stereospecific (72TL3827). [Pg.75]

There are several examples of intramolecular reactions of monocyclic /3-lactams with carbenes or carbenoids most of these involve formation of olivanic acid or clavulanic acid derivatives. Thus treatment of the diazo compound (106) with rhodium(II) acetate in benzene under reflux gives (107), an intermediate in the synthesis of thienamycin (80H(14)1305, 80TL2783). [Pg.254]

H-Pyran, 2-alkoxy-4-methyl-2,3-dihydro-conformation, 3, 630 4H-Pyran, 2-amino-IR spectra, 3, 593 synthesis, 3, 758 4H-Pyran, 4-benzylidene-synthesis, 3, 762 4H-Pyran, 2,3-dihydro-halogenation, 3, 723 hydroboration, 3, 723 oxepines from, 3, 725 oxidation, 3, 724 reactions, with acids, 3, 723 with carbenes, 3, 725 4H-Pyran, 5,6-dihydro-synthesis, 2, 91 4H-Pyran, 2,6-diphenyl-hydrogenation, 3, 777 4H-Pyran, 6-ethyl-3-vinyl-2,3-dihydro-reactions, with acids, 3, 723 4H-Pyran, 2-methoxy-synthesis, 3, 762 4H-Pyran, 2,4,4,6-tetramethyl-IR spectra, 3, 593 4H-Pyran, 2,4,6-triphenyl-IR spectra, 3, 593... [Pg.764]

The reactions of carbenes, which are apparently unique in displaying electrophilic character in strongly basic solutions, include substitution, addition to multiple bonds, and co-ordination with lone pairs of electrons to form unstable ylides. This last reaction is of obvious relevance to a consideration of the reactions of heterocyclic compounds with carbenes and will be summarized. [Pg.61]


See other pages where With Carbenes is mentioned: [Pg.518]    [Pg.523]    [Pg.527]    [Pg.530]    [Pg.548]    [Pg.551]    [Pg.562]    [Pg.580]    [Pg.599]    [Pg.609]    [Pg.617]    [Pg.617]    [Pg.635]    [Pg.652]    [Pg.656]    [Pg.665]    [Pg.702]    [Pg.735]    [Pg.771]    [Pg.772]    [Pg.773]    [Pg.774]    [Pg.816]    [Pg.859]    [Pg.867]    [Pg.883]    [Pg.884]    [Pg.884]    [Pg.887]    [Pg.888]    [Pg.895]    [Pg.57]    [Pg.59]    [Pg.61]    [Pg.63]    [Pg.65]    [Pg.67]    [Pg.69]    [Pg.71]    [Pg.73]    [Pg.75]    [Pg.77]   


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1.2- Dithiole-3-thiones with carbene precursors

1.3- Dienes coupling with carbene complexes

1.3- Dienes cycloaddition reactions with alkynyl carbene

1.3- Dienes reactions with iron carbene complexes

2- Butyne reaction with iron carbene complexes

2- Pentyne reaction with carbene complexes

5-Membered rings reaction with carbenes

Acetals, reaction with carbene complexes

Acetylenedicarboxylates reactions with carbenes

Acetylenes reactions with Fischer carbene

Aldehydes reaction with nucleophilic carbenes

Alkali metal complexes with carbenes

Alkenes coupling with carbene complexes

Alkenes isomeric products with carbenes

Alkenes reaction with carbenes

Alkenes reaction with carbenes, stereochemistry

Alkenes reactivity with carbenes

Alkenes, substituent effects with carbene addition

Alkynes coupling with carbene complexes

Alkynes reaction with carbene complexes

Alkynes reaction with carbenes

Alkynes reactions with Fischer carbene complexes

Alkynes, annulation with Fischer carbenes

Allenes reactions with Fischer carbene complexes

Amines reaction with carbene complexes

An Extension Metal Complexes with Unsaturated Carbenes

Arenes with carbenes

Aromatic compounds addition reactions with carbenes

Aromatic compounds reaction with carbenes

Aromatic compounds ring expansion with carbenes

Benzene derivatives reaction with carbenes

Benzene reaction with carbenes

Benzo furan reaction with carbenes

Benzofuran reaction with carbenes

Bicyclobutane carbenes reaction with

Carbene Complexes with Boron

Carbene Complexes with Group

Carbene carbonyl olefination with

Carbene complexes analogy with olefins

Carbene complexes insertion reactions with

Carbene complexes reactions with carbonyl compounds

Carbene complexes reactions with nucleophiles

Carbene complexes with acids

Carbene complexes with alkenes

Carbene complexes with alkynes

Carbene complexes with amines

Carbene complexes with cobalt porphyrins

Carbene complexes with electrophiles

Carbene complexes with electrophilic carbenes

Carbene complexes with group 13 elements

Carbene complexes with hydrogen halides

Carbene complexes with iron porphyrins

Carbene complexes with osmium porphyrin

Carbene complexes with phosphines

Carbene complexes with pyridine

Carbene complexes with rhodium porphyrins

Carbene complexes with ruthenium

Carbene complexes with ruthenium porphyrins

Carbene complexes with vinyl ethers

Carbene complexes, alkyl pentacarbonylalkylation reaction with carbonyl compounds

Carbene cycloaddition with alkene

Carbene cyclopropanation with

Carbene cyclopropanations with

Carbene precursors, reaction with

Carbene reaction with alkenes

Carbene reaction with lone pairs

Carbene reaction with olefins

Carbene with alcohols

Carbene with alkynes

Carbene with carbon nucleophiles

Carbene with rhodium compounds

Carbene with ylides

Carbene, dichloro-, reactions with

Carbenes addition with

Carbenes and carbenoid intermediates reactions with aromatic compounds

Carbenes combination with nucleophiles

Carbenes complexes with alkenes

Carbenes complexes with electrophiles

Carbenes cycloaddition with

Carbenes cycloadditions with alkenes

Carbenes cyclopropanations with

Carbenes reaction with carbonyl

Carbenes reaction with ethers

Carbenes reaction with nitriles

Carbenes reaction with polystyrene

Carbenes reactions with alkanes

Carbenes reactions with diynes

Carbenes reactions with enamines

Carbenes reactions with esters

Carbenes ring expansion with aromatic

Carbenes with alkenes

Carbenes with alkynes

Carbenes with benzene

Carbenes with methane

Carbenes, alkynyltransition metal complexes cycloaddition reactions with 1,3-dienes

Carbenes, complexes with transition metals

Carbenes, complexes with transition metals electronic structure

Carbenes, complexes with transition metals rearrangement

Carbenes, dihaloreaction with enol ethers

Carbenes, generation reaction with diazoalkanes

Carbenes, generation with alkynes

Carbenes, halo reaction with alkenes

Carbenes, nucleophilic with aldehydes

Carbenes, reaction with alkenes, stereoselectivity

Carbenes, reaction with heterocyclic

Carbenes, reaction with heterocyclic compounds

Carbenes, reaction with indenes

Carbenes, reactions with pyridine

Catalytic Cyclopropanations with Other Carbene Precursors

Coupling reactions with carbene complexes

Cycloaddition of chromium-carbene complexes with imines

Cyclohexene reaction with carbene

Cyclohexene reaction with carbenes

Cyclopropanation with acceptor-substituted carbene

Cyclopropanation with heteroatom-substituted carbene

Cyclopropanation with titanium carbene complexes

Cyclopropanations with Carbene Equivalents

Cyclopropanes from carbene reaction with alken

Cyclopropyl carbene complexes reactions with alkenes

Diazoalkanes with heteroatom-substituted carbene

Diazoalkanes, reaction with carbenes

Diazoketones, carbene reactions with

Dienes reaction with carbenes

Diethyl zinc, reaction with carbenes

Dimethyl fumarate reaction with carbenes

Dimethyl maleate reaction with carbenes

Dinitrogen reaction with carbenes

Early Transition and Rare Earth Metal Complexes with N-Heterocyclic Carbenes

Electrophiles with carbene ligands

Enynes reaction with Fischer carbene complexes

Ethene reaction with carbenes

Ethers, enol reaction with carbenes

Evidence of initiating species in systems with non-carbene catalysts

Five-membered heterocycles reactions with carbenes

Fulvenes with carbenes

Furan with carbenes

Germylenes with carbene

Heteroaromatic compounds reactions with carbenes

Heterocycles reaction with carbenes

Heterocyclic compounds reactions of, with carbenes

Hexafluorobenzene reaction with carbenes

Imines reaction with carbene complexes

Imines reactions with Fischer carbene complexes

Indole reaction with carbenes

Indole ring expansion with carbenes

Indole, alkyl-, reaction with carbenes

Iron complexes, carbene reactions with alkenes

Isocyanides reactions with Fischer carbene complexes

Isothiocyanates reaction with carbenes

Ketenimines reactions with Fischer carbene complexes

Metal carbenes with carboxylic esters

Metal-carbene complexes reaction with alkenes

Metal-carbene complexes reaction with ylides

Metal-carbene complexes reactions with

Methanol reaction with singlet carbene

Nickel Complexes with Carbonyl, Isocyanide, and Carbene Ligands

Olefins reaction with carbenes

Organocobalt(i) complexes with carbene ligands

Organometallic compounds carbene, reactions with

Organometallic compounds carbenes, reactions with

Oxetane reaction with carbenes

Oxidation reaction with carbene complexes

Oxidation reactions with Fischer carbene complexes

Phosphorus reaction with carbene complexes

Pinacol reaction with carbenes

Pyran, dihydro-, reaction with carbenes

Pyridine reaction with singlet carbene

Pyridines with osmium carbenes

Pyrroles reaction with carbenes

Pyrroles with carbenes

Reaction with C2-functionalized Carbene Adducts

Reaction with Isolated Carbenes

Reaction with carbenes

Reaction with phosphorus carbene

Reactions of Carbenes with Nucleophiles

Reactions of Complexes with Neutral Carbene Precursors

Reactions of, with carbenes

Reactions with Atoms, Free Radicals and Carbenes

Reactions with Carbenes and Nitrenes

Reactions with alkyl pentacarbonyl carbene anions

Rhodium carbene, reactions with

Ruthenium with carbenes

Silver complexes with carbenes

Singlet carbene reaction with alkene

Stereoselective Syntheses with Sugar Metal Carbenes

Suzuki couplings with palladium carbenes

Suzuki-Miyaura coupling with palladium carbenes

Synthesis applications with carbenes

The Reactions of Stable Nucleophilic Carbenes with Main Group

Thiophene reaction with carbenes

Thiophenes with carbenes

Titanium complexes with carbenes

Triazole carbene, rearrangements with

Triorganoboron complexes, with carbenes

With osmium carbene complexes

With rhodium carbene complexes

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