1 -Carboxymethyl-4,7 -dimethyl

Nl AMMONIUM. HEXAMETHYLENEBIS((CARBOXYMETHYL)DIMETHYL-, DICHLORIDE DIDOOECYL ESTER... 

N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxohydrogenated tallow alkyl) amino]-1-propanaminium, hydroxides, inner salts. See Hydrogenated tallow betaine N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxoisooctadecyl) amino]-1-propanaminium hydroxide, inner salt. See Isostearamidopropyl betaine N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxomink) amino]-1-propanaminium hydroxide, inner salt. See Minkamidopropyl betaine N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxooctadecenyl) amino]-1 -propanaminium hydroxide, inner salt (Z)-(Carboxymethyl) dimethyl-3-[(1 -oxo-9-octadecenyl) amino] propylammonium hydroxide. See Oleamidopropyl betaine N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxooctadecyl) amino]-1-propanaminium hydroxide, inner salt (Carboxymethyl) dimethyl-3-[(1 -oxooctadecyl) amino] propylammonium hydroxide. See Stearamidopropyl betaine N-(Carboxymethyl-N,N-dimethyl-3-[(1-oxoolive) amino]-1-propanaminium hydroxide, inner salt. See Olivamidopropyl betaine N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxopalm kernel) amino]-1-propanaminium hydroxide inner salt. See Palm kernelamidopropyl betaine... 

Synonyms N-(Carboxymethyl)-N,N-dimethyl-3-[(1-oxododecyl) amino]-1-propanaminium hydroxide, inner salt (Carboxymethyl) dimethyl-3-[(1 -oxododecyl) amino] propylammonium hydroxide Lauramidopropyl dimethyl glycine... 

Condensation of o-phenylenediamine or xV-methyl-o-phenylcne-diamine with alloxan (8) in neutral solution gives the ureides (9) and (10), respectively However, reaction of o-phenylenediamine with 1,3-dimethylalloxan (13) yields quinoxalin-3-one-2-carboxymethyl-amide (14), rather than the dimethyl ureide. Methylation of (9) in acetone in the presence of potassium carbonate gives the spiro-hydantoin (11). 

Ahnliche Eigenschaften wie Lithiumboranat besitzt auch Natrium-trimethoxy-hydri-do-borat1, mit dem z.B. bei 4a,9/ -Dimethyl-8/j-carboxymethyl-4/i,7a-dimcthoxycarbo-nyl-dekalin in 1,2-Dimethoxy-athan bei 85° die sekundare Methoxycarbonyl-Gruppe se-lektiv unter Bildung von 4a,9(i-Dimethyl-7a.-hydroxymethyl-8fi-carboxymethyl-4fi-methoxycarbonyl-dekalin (98°/, d.Th.) reduziert wird2 ... 

Dimethyl-7 -hydroxymethyl-8/i-carboxyme-thyl-4/i-mcthoxycarbonyl-aus 4a,9-Dimethyl-8/i-carboxymethyl-4/i,7 -dimethoxycarbonyl-dekalin und Natriumtrime-thoxy-hydrido-borat 201 Dioxo- 732 9-Hydroperoxy- 570 Hydroxy- 605, 732, 747 9-Hydroxy- 570... 

Secondary amines, such as pyrrolidine, must be alkylated with care too polar a solvent leads to participation of a second nearby polymer-bound alkylant in the formation of a quaternary ammonium salt, along with the desired immobilized trialkyl amine. The exception, as seen above, is diisopropylamine, which refuses to displace tosylate even in the refluxing pure amine, or in hot dimethyl-formamide or other polar solvent, while metal diisopropylamide is notorious as a powerful non-nucleophilic base. However, carboxamide is not difficult to form from (carboxymethyl)polystyrene, again using toluenesulfonyl chloride as condensing agent this can then be reduced to (diisopropyl-ethylaminoethyl)polystyrene, which is of interest as a polymer-bound non-nucleophilic base. ... 

Cellulose may be converted from a water-insoluble polymer to a water-soluble polymer by the partial etherification of some of the hydroxyl groups by dimethyl sulfate. When the degree of substitution (DS) is 1.5 to 2.0, the hydrogen bonds are sufficiently weakened, and the methylcellulose is soluble in water. Carboxymethyl ethers, such as carboxymethylcellulose (CMC), are also water-soluble. The degree of solubility is related to the DS of the polymer and the pH of the solvent. 

Formamide, A,A-dimethyl-Glycine, A,A-bis(carboxymethyl)-Glycine, A,A-bi5[2-[bis(carboxymethyl)amino]-ethyl]-... 

Repeated Dose Dermal Tests. Twenty-one to 28-day dermal tests are particularly important when the expected route of human exposure is by contact with the skin, as is the case with many industrial chemicals or pesticides. Compounds to be tested are usually applied daily to clipped areas on the back of the animal, either undiluted or in a suitable vehicle. In the latter case, if a vehicle is used, it is also applied to the controls. Selection of a suitable solvent is difficult because many affect the skin, causing either drying or irritation, whereas others may markedly affect the rate of penetration of the test chemical. Com oil, methanol, or carboxymethyl cellulose are preferred to dimethyl sulfoxide (DMSO) or acetone. It should also be considered that some of the test chemical may be ingested as a result of grooming by the animal, although this can be controlled to some extent by use of restraining collars and/or wrapping. 

Carboxymethyl-1,5-naphthyridine 1-oxide 2-Chloro-6,8-dimethyl-1,5-naphthyridine... 

Ar-(Carboxymethyl)-2-pyrazinecarboxamide (49) gave A -(4,6-dimethyl-2-oxo-2//-pyran-3-yl)-2-pyrazinecarboxamide (50) [Me2NCMe=CHAc (made in situ), Ac20, 90°C, 4 h 11%] also analogues similarly.1635... 

C31H32O12N2S, 5,5,-bis-A,A-bis(carboxymethyl)aminomethyl-4 -hydroxy-3,3 -dimethyl-fuchsone-2"-sulphonic acid (xylenol orange), H L ... 

The same authors 291 have used similar means to insert dimethyl-amidomethyl, hydroxyethyl, and carboxymethyl groups at C-14. 

This distinction is primarily useful when the main chain of the macromolecule consists of carbon-carbon bonds. There is little point in labeling polyfethylene terephthalate), 1-5, a copolymer, since this repeating unit obviously contains the residues of two monomers and the polymer is made commercially only by reaction (1-1) or (1-7). Some polyesters are, however, made by substituting about 2 mol % of sodium-2,5-di(carboxymethyl) sulfonate (1-24) for the 3,5 isomer for the dimethyl terephthalate in reaction (1-7) ... 

A major problem associated with derivatized cyclodextrins is their chemical inhomogeneity due to various degrees of substitution, as has been demonstrated by Linnemayr et al. [457], e.g. for various commercial samples of methylated, (2-hy-droxyjpropylated and carboxymethylated P-cyclodextrins. This has led to the development of single-isomer derivatized CDs by Vigh and co-workers [458-461], e.g. of hepta-6-sulphato-P-CD [459], heptakis(2,3-diacetyl-6-sulphato)-p-CD [458], and hep-takis(2,3-dimethyl-6-sulphato)-p-CD [460, which are now commercialized by Regis Technologies. 

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