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Organoboron

For coupling, the cheaper aryl fluorosulfonate 713 is used as an alternative to the expensive aryl triflates to give the same results[473]. The arenesulfonates 714 are active for the reaction with vinylstannanes when dppp and LiCI are used in DMSO[583], The bromide 715 attacks the arylstannane moiety selectively without reacting with the organoboron moiety in 716 in the absence of a base[584]. [Pg.234]

Hydroboration of a,C0-dienes with monoalkylboranes gives reactive organoboron polymers which can be transformed into polymeric alcohols or polyketones by carbonylation, cyanidation, or the DOME reaction followed by oxidation (446—448). [Pg.321]

B. M. Mikhailov and Yu. N. Bubnov, Organoboron Compounds in Organic Synthesis, Harwood Academic PubHshers, London, 1984. [Pg.326]

RTIX2 compounds, eg, dichlorophenyltaHium(III) [19628-33-2], can be obtained from the reaction of thaHic haHde or carboxylate with an organoboron compound (22) ... [Pg.469]

Hydroboration affords an efficient preparation of the 5a-A -system (141, for example) from A" -3-ketones. Reaction with diborane followed by decomposition of the organoboron intermediate with refluxing acetic anhydride gives good yields of olefins. Ketones must be protected, and alcohols are transformed to acetates. A -7-Ketones yield 5oc-A -olefins (for example, 138). [Pg.347]

Cholest-4-en-3-one (139) is converted into the organoboron intermediate (140) this is then decomposed in situ to (141). " ... [Pg.347]

Olefins may be obtained by elimination from the organoboron intermediates formed from enol derivatives and diborane. " As in the reaction with a,jS-unsaturated ketones (section IX), the conversion is carried out in two parts first formation of the diborane adduct and second, decomposition in refluxing acetic anhydride. [Pg.355]

A novel and far-reaching type of isomerism concerns the possibility of valence isomerism between nonclassical (electron-deficient) clusters and classical" organoboron structures. Thus, n-vertexed /do-boranes. have cluster structures... [Pg.187]

AbRfi (or AIR3) react readily with ligands to form adducts, LAIR3. They are stronger Lewis acids than are organoboron compounds, BR3, and can be considered as hard (or class a)... [Pg.259]

Organoboron reagents ate pariictdarly well suited for 1,4-additions of aryl and vinyl groups to enones. Hayasbi et al. developed a highly enantioselective RliQ)/ BlNAP-catalyzed 1,4-addilion of pbenylbotonic add lo cyclic and acyclic enones [24] fSclieme 7.5) and 1-alkenylpbospbonales [25]. [Pg.227]

Palladium-catalyzed cross-coupling with organoboron compounds... [Pg.271]

Palladium-catalyzed carbon-carbon bond forming reactions like the Suzuki reac-tion as well as the Heck reaction and the Stille reaction, have in recent years gained increased importance in synthetic organic chemistry. In case of the Suzuki reaction, an organoboron compound—usually a boronic acid—is reacted with an aryl (or alkenyl, or alkynyl) halide in the presence of a palladium catalyst. [Pg.272]

An alkyl- or alkenylboron compound, as a suitable organoboron component (a borane, boronic acid or ester) can be prepared through hydroboration of an... [Pg.272]

The preparation and analytical results of semipolar organoboron compounds containing Cl or P were reported and the surface activity and fireproofing mechanism of these substances were described [283]. [Pg.612]


See other pages where Organoboron is mentioned: [Pg.65]    [Pg.172]    [Pg.218]    [Pg.224]    [Pg.323]    [Pg.479]    [Pg.145]    [Pg.222]    [Pg.269]    [Pg.270]    [Pg.106]    [Pg.108]    [Pg.109]    [Pg.601]    [Pg.145]    [Pg.51]    [Pg.225]    [Pg.25]    [Pg.484]    [Pg.485]    [Pg.591]    [Pg.24]    [Pg.29]    [Pg.202]    [Pg.52]    [Pg.49]    [Pg.57]    [Pg.65]    [Pg.66]    [Pg.662]   
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See also in sourсe #XX -- [ Pg.258 ]

See also in sourсe #XX -- [ Pg.11 , Pg.38 ]

See also in sourсe #XX -- [ Pg.160 , Pg.164 ]

See also in sourсe #XX -- [ Pg.196 , Pg.197 ]

See also in sourсe #XX -- [ Pg.69 ]

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See also in sourсe #XX -- [ Pg.13 ]




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0-Aryl complexes from organoborons

1,4-addition of organoboron

Acetylene organoboron compounds

Acyclic Organoboron-Nitrogen Compounds

Addition of Organoboronic Acids to Aldehydes and Imines

Addition of organoboron compounds

Additional Organoboron-Nitrogen Heterocycles

Additions of Organoboron Reagents

Anion-trapping-type organoboron polymer

Anion-trapping-type organoboron polymer electrolytes

Aromatic organoboron compounds

Arylation organoboron compounds

B4 Organoboron routes to unsaturated hydrocarbons

Boron organoboron compounds

Chiral organoboron compound

Cleavage organoboron

Cobalt-Catalyzed MCRs Containing Organoboron Compounds

Conjugated organoboron polymers

Coupling reactions organoboron reagents

Cross-coupling organoboron

Cross-coupling organoboron with organic electrophiles

Cross-coupling reactions of organoboron compounds

Cross-coupling reactions organoborons

Cross-coupling with organoboron compound

Fluorescent organoboron polymers

Fluorinated organoboron

Fluorinated organoboron compounds

Halides coupling with organoboron reagents

Halides organoboron

Hydridic hydrogen organoboron compounds

Lewis acidic organoboron compounds

Luminescent organoboron compounds

Luminescent organoboron quinolate polymers

Main-chain-type organoboron polymers

Multicomponent Assembly of Organoboron Compounds Efficient Approach to Supramolecular Chemistry

Multicomponent Reactions with Organoboron Compounds

New Preparations of Organoboron Compounds

Organic Synthesis Using Organoboron Compounds

Organic electrophiles organoboron

Organic halides coupling reaction with organoboron

Organic halides organoboronate synthesis

Organoaluminum organoboron

Organoboron acids

Organoboron additions

Organoboron alkyls

Organoboron amino acids

Organoboron boranes

Organoboron borate

Organoboron boronic acids

Organoboron catalysts

Organoboron chemistry

Organoboron compound

Organoboron compounds Organoboronic acids

Organoboron compounds Subject

Organoboron compounds alkenes

Organoboron compounds conjugate additions

Organoboron compounds cross-coupling reactions

Organoboron compounds metal-catalyzed

Organoboron compounds metal-catalyzed cross-coupling reactions, with organic

Organoboron compounds metal-catalyzed electrophiles

Organoboron compounds oxidation

Organoboron compounds palladium complexes

Organoboron compounds preparative methods

Organoboron compounds reactions with

Organoboron compounds rearrangement

Organoboron compounds, Suzuki coupling

Organoboron compounds, Suzuki reaction

Organoboron compounds, Suzuki reaction mechanisms

Organoboron compounds, applications

Organoboron compounds, determination

Organoboron compounds, reaction mechanisms

Organoboron compounds, reaction mechanisms addition reactions

Organoboron cross-coupling partners

Organoboron cross-coupling partners boronates

Organoboron formation

Organoboron hydrides

Organoboron main-chain polymers

Organoboron polymer electrolytes

Organoboron polymer electrolytes lithium transference number

Organoboron polymer reactions

Organoboron polymer synthesis

Organoboron polymer synthesis hydroboration polymerization

Organoboron polymers

Organoboron polymers systems

Organoboron reaction with

Organoboron reagents

Organoboron reagents reaction

Organoboron reagents, arylation with

Organoboron reagents, rhodium catalyzed

Organoboron reagents, rhodium catalyzed addition

Organoboron rearrangements

Organoboron redistribution

Organoboron sandwich complexes

Organoboron species

Organoboron, coupling

Organoboron-Co Compounds

Organoboron-based asymmetric

Organoboronate esters, amination

Organoboronate synthesis

Organoboronates

Organoboronates

Organoboronic acids

Organoboronic acids esters

Organoboronic acids formation

Organoboronic acids mercury salts

Organoboronic acids palladium complexes

Organoboronic acids reactions with

Organoboronic acids transmetallation

Organoboronic acids vinyl substitutions

Organoboronic esters

Organoboronic reagents

Organoboronic reagents cyclization with

Organoborons

Organoborons

Palladium organoborons

Palladium-catalyzed cross coupling reaction of organoboron compounds

Preparation and Reactions of Organoboron Compounds

Preparation of Sulphides using Organomagnesium, Organoboron, or Organophosphorus Reagents

Preparation of organoboron compounds

Reactions with Organoboron Reagents The Suzuki-Miyaura Reaction

Rearrangements of Unsaturated Organoboron and Organoaluminum Compounds

Redistribution of organoboron hydrides

Reducing agents organoboron compounds

Reduction of CO2 with Organoborons

Reductions using Organoboron Compounds

Subject from organoborons

Suzuki coupling of organoboronic acids

Suzuki organoboron cross-coupling partner

Synthesis of organoboron compounds

Theoretical, Physical and Structural Studies on Organoboron Compounds

Transmetalation of Organoboron and Organoaluminium Reagents

Transmetallation of organoboron

Transmetallation of organoboron compounds

Transmetallation of organoboronic acids

Trimethylamine N-oxide oxidation of organoboron derivatives

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