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Carbon Group

Polyesters. Polyesters containing carbonate groups have been prepared from this diol (see Polycarbonates) (99). Films of this polymer, formed from an acetone or ethyl acetate solution, exhibit exceUent adhesive properties. [Pg.374]

The----CH2----group is twice joined hy a single bond to a carbon group,... [Pg.398]

Diphenyl carbonate, an alternative source of the carbonate group to phosgene, may be obtained by reacting phenol with phosgene in acqueous caustic soda solution, the reaction being accelerated by tertiary amines. The diphenyl carbonate can be purified by redistillation. [Pg.558]

The carbonate groups are polar but separated by aromatic hydrocarbon groups. [Pg.561]

Figure 20.6 shows the disposition of the molecules in the elementary cell as detennined by Prietschk. It will be seen that in the crystalline zone the molecules pack in such a way that the methyl groups attached to the pivotal carbon atom extend toward the back of the carbonate group of the neighbouring chain. [Pg.562]

These materials have the general structure shown in Figure 20.11 and are prepared by reaction of bisphenol A with iso- and/or terephthalic acid and a carbonate group donor (e.g. phosgene or diphenyl carbonate). [Pg.580]

Finally mention may be made of the phenoxy resins. These do not contain the carbonate group but are otherwise similar in structure, and to some extent in properties, to the bis-phenol A polycarbonate. They are dealt with in detail in Chapter 21. [Pg.582]

Burchell, T.D., Weaver, C E., Derbyshire, F., Fei, Y.Q. and Jagtoyen M., Carbon fiber composite molecular sievesisynthesis and characterization. In Proc. Carbon 94, Granada, Spain, Spanish Carbon Group, 1994, pp. 650 651. [Pg.202]

Fig. 2. Fully hydrated calcile lOT 1 surface showing rotation of surface carbonate groups with bulk ordering below (after [6]). Fig. 2. Fully hydrated calcile lOT 1 surface showing rotation of surface carbonate groups with bulk ordering below (after [6]).
The reactivity of various steroid alcohols decreases in the order primary > secondary (equatorial) > secondary (axial) > tertiary. The only systematic investigation relating to the selective protection of steroidal hydroxyl functions has been carried out with the cathylate (ethyl carbonate) group. Since only equatorial hydroxyl groups form cathylates this ester has been used as a diagnostic tool to elucidate the configuration of secondary alcohols. [Pg.380]

Mn-+ K+ Ni " Arginase Pyruvate kinase (also requires Mg ) U rease Tetrahydrofolate (THF) Other one-carbon groups Thymidylate synthase... [Pg.430]

We are familiar with several examples of chemical activation as a strategy for group transfer reactions. Acetyl-CoA is an activated form of acetate, biotin and tetrahydrofolate activate one-carbon groups for transfer, and ATP is an activated form of phosphate. Luis Leloir, a biochemist in Argentina, showed in the 1950s that glycogen synthesis depended upon sugar nucleotides, which may be... [Pg.755]

MC has a much stronger influence on ion-pair dissociation than PC. The EO units on MC coordinate cations which have been dissociated by the carbonate group, and prevent cation association with the anion. It is thought that, whereas conventional plasticizers like PC create fast ion-... [Pg.516]

Dihydrofolate reductase is required for the sythesis of tetrahydrofolate, a co-factor required for the transfer of single carbon groups. Inhibition of dihydrofolate... [Pg.426]

Effect on Reactivity. We refer to the carbon containing the nucleofuge (X) as the a carbon and to the carbon that loses the positive species as the p carbon. Groups attached to the a or P carbons can exert at least four kinds of influence ... [Pg.1319]

Decane and other hydrocarbons consist of chains of tetrahedral carbon groups, emphasized here by highlighting one of the groups. [Pg.607]

Figure 5.10. Defects consisting of oxygen vacancies constitute adsorption sites on a Ti02 (110) surface. Note how CO binds with its lone-pair electrons on a Ti ion (a Lewis acid site). O2 dissociating on a defect furnishes an O atom that locally repairs the defect. CO2 may adsorb by coordinating to an O atom, thus forming a carbonate group. [Figure adapted from W. Gopel, C. Rocher and R. Feierabend, Phys. Rev. B 28 (1983) 3427.]... Figure 5.10. Defects consisting of oxygen vacancies constitute adsorption sites on a Ti02 (110) surface. Note how CO binds with its lone-pair electrons on a Ti ion (a Lewis acid site). O2 dissociating on a defect furnishes an O atom that locally repairs the defect. CO2 may adsorb by coordinating to an O atom, thus forming a carbonate group. [Figure adapted from W. Gopel, C. Rocher and R. Feierabend, Phys. Rev. B 28 (1983) 3427.]...
The role of the ligands is both to stabilize the Pd(0) state and to tune the reactivity of the palladium. The outline mechanism above does not specify many detailed aspects of the reaction that are important to understanding the effect of ligands, added salts, and solvents. Moreover, it does not address the stereochemistry, either in terms of the Pd center (tetracoordinate pentacoordinate , cisl, transl) or of the reacting carbon groups (inversion , retention ). Some of these issues are addressed by a more detailed mechanism.190... [Pg.731]


See other pages where Carbon Group is mentioned: [Pg.8]    [Pg.4]    [Pg.407]    [Pg.280]    [Pg.197]    [Pg.198]    [Pg.395]    [Pg.395]    [Pg.398]    [Pg.127]    [Pg.95]    [Pg.562]    [Pg.572]    [Pg.572]    [Pg.33]    [Pg.276]    [Pg.612]    [Pg.750]    [Pg.73]    [Pg.95]    [Pg.703]    [Pg.1284]    [Pg.923]    [Pg.704]    [Pg.891]    [Pg.964]    [Pg.91]    [Pg.33]    [Pg.31]    [Pg.173]    [Pg.334]    [Pg.15]    [Pg.784]   
See also in sourсe #XX -- [ Pg.189 , Pg.190 , Pg.191 , Pg.192 , Pg.193 , Pg.194 , Pg.195 , Pg.196 , Pg.197 , Pg.198 , Pg.199 , Pg.200 , Pg.201 , Pg.202 , Pg.203 , Pg.204 , Pg.205 ]

See also in sourсe #XX -- [ Pg.292 ]

See also in sourсe #XX -- [ Pg.189 , Pg.190 , Pg.191 , Pg.192 ]




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1 Carbon dioxide methyl groups

Acetonide from carbonate group

Activated carbon acidic groups

Activated carbon basic groups

Activated carbon pyrone groups

Activated carbon surface functional groups

Addition of Carbon Nucleophiles to Carbonyl Groups

Aldehyde groups carbon-hydrogen bonds

Alkenyl Radicals Bearing Stabilizing Groups on the Carbon Radical Center

Alkyl group with more than four carbons

Amides Carbon group

Ammonium carbonate group

Basicity Carbonate, oxide group

Carbon Acids and Ranking of Electron-Withdrawing Groups

Carbon and Hydrogen Leaving Groups

Carbon as protecting group

Carbon black carboxyl group

Carbon black functional group

Carbon black functional group characterization

Carbon black functional group oxygen

Carbon black surface acid groups

Carbon black surface, bonded group

Carbon common functional groups

Carbon compounds functional groups

Carbon dioxide point group

Carbon distribution, oxygen-methyl group

Carbon functional group concentrations

Carbon group contributions

Carbon groups, thin layer chromatography

Carbon leaving groups

Carbon microcrystalline, surface groups

Carbon monoxide point group

Carbon monoxide removal, hydroxyl groups

Carbon nanotubes functionalization groups

Carbon of carbonyl groups

Carbon-13 chemical shifts of carbonyl group

Carbon-Halogen Bond Formation with Group 11 Metals

Carbon-halogen, Group 8/9 metals

Carbon-leaving group bond

Carbon-nitrogen groups, insertion

Carbon-nitrogen groups, insertion reactions

Carbon-oxygen functional groups

Carbonate group migration

Carbonate ion Group

Carbonate protecting group

Carbonates group

Carbons oxygen surface groups

Carbonyl carbon group

Carbonyl group carbon—oxygen bond length

Carbonyl groups carbon-13 chemical shifts

Carbon—germanium bonds group

Carbon—group-VB bonds

Carbon—hydrogen bonds group

Carbon—silicon bonds group

Characterization of Carbon-Oxygen Surface Groups

Containing Metal-Carbon cr-Bonds of the Groups Iron, Cobalt, and Nickel

Cross-coupling between two unsaturated carbon groups

Cyclic carbonate functional groups

Elimination of Neutral Group Connecting Carbon with Metal (Deinsertion)

Families of Carbon Compounds Functional Groups, Intermolecular Forces, and Infrared (IR) Spectroscopy

From carbon monoxide reaction with Group

From carbon monoxide reaction with Group chlorides

Functional Groups Containing Carbon

Functional Groups by Nucleophilic Substitution at Saturated Carbon

Functional group, carbon

Functional group, carbon determination

Functional groups on carbon surface

Functional groups, of carbon

Further Carbon Functional Groups

Group 14 The Carbon Family

Group 14 elements carbon

Group 4A elements Carbon

Group IV element-carbon

Group IV element-carbon peroxides

Group IVA The Carbon Family

Group VIII transition metals, carbon

Group allotropes of carbon

Group from a Chiral Carbon Racemization

Group-IIIB-carbon bonds

Hydrides carbon group

Hydroxyl groups, substituent effect carbon chemical shifts

Lead—carbon bonds group

Metal groups carbon-boron bonds

Metal groups carbon-silicon bonds

Metal-Carbon r-Bonds of the Groups Iron, Cobalt, and Nickel

Other Group IIA carbonates

Oxygen Bridge Activation by an Electron-Donating Group at the Bridgehead Carbon

Oxygen-methyl group carbon

Potassium carbonate, functional group

Potassium carbonate, functional group tolerance

Precipitate carbonate group precipitates

Protective groups carbonates

Protein carbon group

Reaction of Carbon Nucleophiles with Carbonyl Groups

Reactions at Other Carbon-linked Groups

Reactions at the Carbonyl Group—Adding or Removing One Carbon Atom

Reactions groups surrounding carbon atom

Replacement of the Hydroxyl (-OH) Functional Group by Carbon An Example from Nature

SGL Carbon Group

Sulfur—carbon bonds group

Surface Groups on Carbon

Surface groups, carbons

Tert-butyl carbonate groups

The Carbon Group

Triosmium Clusters with Group IV Elements Other than Carbon

Vibrations of Methyl Groups Attached to Elements other than Carbon

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