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Reactivity Groups

The mechanisms of the Fischer esterification and the reactions of alcohols with acyl chlorides and acid anhydrides will be discussed m detail m Chapters 19 and 20 after some fundamental principles of carbonyl group reactivity have been developed For the present it is sufficient to point out that most of the reactions that convert alcohols to esters leave the C—O bond of the alcohol intact... [Pg.640]

Indeed the order of leaving group reactivity m nucleophilic aromatic substitution is the... [Pg.976]

Reactive extrusion Reactive groups Reactive ion etching (RIE)... [Pg.842]

Pyrylium salts alkyl groups reactivity, 3, 662 aromaticity, 3, 640 arylammes from, 3, 657 benzenoid compounds from, 3, 656, 658 benzisoxazol-3-yl-synthesis, 6, 124 bicyclic... [Pg.824]

Aldehyde 198 served as a key intermediate in a synthesis of the alkaloid ajmaline. The. Mannich aminomethylation transform triggers disconnection of two bonds in 198 to form dialdehyde 199, which by connective transform application can be converted to cyclopentene 200.58,59 The reduction in functional group reactivity and in structural complexity are both apparent by comparison of 198 and 200. [Pg.73]

Birch s procedure for tropone synthesis appears to be widely applicable to 2,3- or 2,5-dihydroanisole derivatives which are readily obtained by reduction of appropriate aromatic methyl ethers by alcoholic metal-ammonia solutions. " Additional functional groups reactive to dibromocarbene or sensitive to base such as double bonds, ketones and esters would need to be protected or introduced subsequent to the expansion steps. [Pg.373]

The carbonyl group reactivities in thiophenes and benzenes are very similar, as shown by the similar rates of alkaline hydrolysis of esters and by the great similarity of the thiophenealdehydes to benzaldehyde in numerous carbonyl group reactions. This has been ascribed to the counteracting —I- -M effects of the thienyl group in this kind of reactions. ... [Pg.94]

Most of the commercially available reactive compatibilized systems contain acidic functional groups. Reactive... [Pg.676]

The objective in selecting the reaction conditions for a preparative nucleophilic substitution is to enhance the mutual reactivity of the leaving group and nucleophile so that the desired substitution occurs at a convenient rate and with minimal competition from other possible reactions. The generalized order of leaving-group reactivity RSOj" I- > BF > CF pertains for most Sw2 processes. (See Section 4.2.3 of Part A for more complete data.) Mesylates, tosylates, iodides, and bromides are all widely used in synthesis. Chlorides usually react rather slowly, except in especially reactive systems, such as allyl and benzyl. [Pg.224]

Chemical intuition, based on numerous literature precedents21 26 demonstrating highly varying hydroxyl group reactivities, would have predicted that the major products in the above fucosylation reactions would be those formed by glycosylation... [Pg.251]

In general, wider polydispersity in functionality or group reactivity makes the gel time shorter and critical conversion lower. This conclusion is based on the results of theoretical and experimental studies concerning the effect of distributions in functionality and in group reactivity on crosslinking of functional stars [31-33],... [Pg.125]

Difference in reactivities of A groups and on the dependence of group reactivities on the reaction state of the unit (substitution effect) [78,79]. [Pg.137]


See other pages where Reactivity Groups is mentioned: [Pg.316]    [Pg.68]    [Pg.57]    [Pg.83]    [Pg.476]    [Pg.94]    [Pg.274]    [Pg.369]    [Pg.265]    [Pg.661]    [Pg.1337]    [Pg.179]    [Pg.445]    [Pg.196]    [Pg.70]    [Pg.451]    [Pg.147]    [Pg.89]    [Pg.226]    [Pg.172]    [Pg.356]    [Pg.435]    [Pg.144]    [Pg.147]    [Pg.148]    [Pg.184]    [Pg.4]    [Pg.113]    [Pg.298]    [Pg.899]    [Pg.232]    [Pg.56]    [Pg.328]   
See also in sourсe #XX -- [ Pg.450 , Pg.451 ]




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2-Silyl groups, reactive

Acetals reactivity hydroxyl groups

Acid catalysts increase the reactivity of a carbonyl group

Activity-based probes reactive groups

Acyloxy group reactivities

Alkyl groups reactivity

Amides reactivity of carbonyl group

Amine group , reactivity

Amino groups relative reactivity

Amino groups, reactivities

Aromatic compound group influencing reactivity

Biodegradable Aliphatic Polyester Grafted with Poly(Ethylene Glycol) Having Reactive Groups and Preparation Method Thereof

Carbonyl group reactivity

Carbonyl group, addition reactions reactivity

Carbonyl groups relative reactivities

Carbonyl groups, reactivity in thiophenes

Cationic starches with covalently-reactive groups

Chemical reactivity and group trends

Chemical reactivity functional groups

Chemical reactivity, surface groups

Compatibility functional groups, reactivity

Compatibilizer polymers bearing reactive groups

Condensation polymerization reactive functional groups

Constitutional Factors Affecting the Reactivity of Functional Groups

Controlling Anomeric Selectivity, Reactivity, and Regioselectivity in Glycosylations Using Protecting Groups

Cyclopropanes with other reactive groups

Donor reactivity, protecting group

Donor reactivity, protecting group electronic effects

Donor reactivity, protecting group torsional effects

Effect of Reactive Grouping Conjugation

Electron-withdrawing groups carbocation reactivity

End groups reactive

Epoxy oligomer reactive groups

Equal reactivity of functional groups

Esters reactivity of carbonyl group

Fibre-reactive Groups Reacting by Nucleophilic Addition

Fibre-reactive Groups Reacting by Nucleophilic Substitution

Fibre-reactive groups

Fillers reactive groups

Functional group activation reactive intermediates

Functional group reactivity

Functional group reactivity Polymer substrate

Functional group, reactivity with

Functional groups and reactivity

Functional groups centers of reactivity

Functional groups, concept equal reactivity

Functional groups, organic reactivity

Functional groups, reactive

Group 13 elements chemical reactivity

Group 14 elements reactivities

Group 4 metal substituents reactivity effects

Group 9 reactivity studies

Group Reactivities in Thiophenes

Group reactivity of elements

Group reactivity of metals

Hydroxyl group, protection Reactivity Chart

Hydroxyl groups reactivity

Hydroxyl groups reactivity with isocyanates

Hydroxyl groups, relative reactivities

Hyperconjugation effects of alkyl groups on relative reactivities

Incomplete Conversion of Reactive Groups due to Vitrification

Influence of Protecting Group on Donor Reactivity

Influence of the N5 Protecting Group on Reactivity and Selectivity

Introduction of Non-functional Alkyl and Reactive Allyl Groups

Introduction of reactive groups

Isocyanate group, reactivity

Isoelectronic series, main group hydride reactivity

Leaving groups reactivity order

Leaving groups reactivity trend

Leaving groups, reactivity in nucleophilic

Leaving groups, reactivity in nucleophilic aromatic substitution

Macromonomers reactive groups

Methyl group, reactivity with carbonyl compounds

Methyl groups reactivity

Microgel reactive groups

NHC Complexes of Main Group Elements Novel Structures, Reactivity, and Catalytic Behavior

Nitro group displacement and the reactivity of polynitroarylenes

Nitro groups, reactivity

One Group of Divinyl Monomer Having Lower Reactivity

Oxidation number of reactive main-group elements

Oxidative addition leaving group reactivity order

Phosphopantetheine-reactive groups

Platinum-group metals reactivity

Poly reactive groups, with

Poly(thiophene)s with Pendant Reactive Groups

Polymers bearing reactive groups

Polymers with reactive functional groups

Polymers with reactive functional groups anionic polymerization

Polymers, functional oxazoline reactive groups

Polystyrene, reactive functional groups

Preparation of oligoorganosiloxanes with reactive groups

Properties and Reactivities of Common Functional Groups

Protecting Groups Effects on Reactivity, Glycosylation Stereoselectivity, and Coupling Efficiency

Protective groups reactivities

Proteins reactive groups

Reactive Group Content of the Reacting Polymers

Reactive Polymers Containing Heterocyclic Groups

Reactive Polymers Containing Hydroxyl Groups

Reactive chemical groups

Reactive dyes chromogenic groups

Reactive group content

Reactive groups

Reactive groups

Reactive groups chemistry

Reactive groups explosives

Reactive groups on resins

Reactive groups storage

Reactive pendant group

Reactive substances grouping

Reactivities of Group 14 Hydrides

Reactivity charts to protect carbonyl groups

Reactivity charts to protect hydroxyl groups

Reactivity dialkylamino groups

Reactivity effects group 4 metal substituents, positive

Reactivity groups, anionic copolymerization

Reactivity induced by the phosphonio group

Reactivity leaving groups

Reactivity neighboring group effect

Reactivity of alkyl groups

Reactivity of carbonyl group

Reactivity of functional groups

Reactivity of groups

Reactivity of hydroxyl groups

Reactivity of isocyanate groups

Reactivity of the Carbonyl Group

Reactivity of the Leaving Group

Reactivity studies, transition metal group 12

Reactivity, hydroxyl groups, selective protection

Reactivity, of nitro group

Relative Reactivity of Halide Leaving Groups

Silanol functional groups, reactive

Silver staining reactive groups

Stability functional groups* reactivity

Starches with Covalently-reactive Groups

Step polymerization functional group reactivity

Structure and SN2 Reactivity The Leaving Group

Structure-reactivity relationships functional group effects

Styrene backbones, reactive pendant groups

Sulfonate group reactive aromatic

Surface reactive groups

Synthesis, Structure and Reactivity of Group

The 13th group elements remarks about their general chemical properties and reactivity

The 4th group metals remarks about their general chemical properties and reactivity

The 5th group metals remarks about their general chemical properties and reactivity

The 6th group metals remarks about their general chemical properties and reactivity

The 7th group metals remarks about their general chemical properties and reactivity

The Benzyl Group and Its Reactivity

The Chemistry of Reactive Groups

Unequal Reactivity of Functional Groups

Unequal functional group reactivity

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