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Methyl-4-dimethylaminobenzoate

Sigma values for smaller substituents are more likely to be additive. However, in the case of 3-methyl, 4-dimethylaminobenzoic acid, the discrepancy is high. For example,... [Pg.13]

Table 2. Electronic origin (in nm) of the excitation spectra (as obtained from the LIF spectroscopy and REMPl-TOF-MS) of 4-dialkylamino derivatives of benzonitrile (I, II, IV) and pyrimidine (VHX), methyl 4-dimethylaminobenzoate (XI) and their clusters with various polar solvent molecules [the displacement in cm (- denotes the red shift and + the blue shift) of the 0,0 transitions of the clusters with respect to the monomer origin are included]... [Pg.3090]

J Based upon aR values and upon excitation coefficients for ethyl 3-methyl-4-dimethylaminobenzoate. [Pg.359]

N-Methyldiethanolamine Methyl-4-dimethylaminobenzoate Isoamyl-4-dimethylaminobenzoate 2-Ethylhexyl 4-dimethylamino-benzoate... [Pg.76]

Perfumes, Flavors, Cosmetics, and Soap. Many naturally occurring esters in essential oils and some synthetic esters are important fragrance and flavor compounds (61,62). They are used in perfumes, flavors, cosmetics, soaps, detergents, and air fresheners. Benzyl, butyl, ethyl, methyl, and phenyl esters of benzoic acid are used as flavors, perfumes, and food preservatives. Glyceryl 4-aminobenzoate [136-44-7] and 2-ethyUiexyl 4-dimethylaminobenzoate [21245-02-3] are used in cosmetic sunscreen preparations. Alkyl esters of 4-hydroxybenzoic acid, called parabens, have been used under various names for fungus infections of the skin, and as preservatives in lotions and creams (101). Soap and cosmetic fragrances use large amounts of amyl and benzyl saHcylate. Benzyl saHcylate [118-58-1] is also used in deodorant sprays. 2-Ethylhexyl saHcylate [118-60-5] and 2-ethylhexyl 4-methoxycinnamate [5466-77-3] are used in sunscreen formulations (102). [Pg.396]

For oxalate detection, authors proposed a similar detection approach for recognition of oxalate via an immobilized oxalate oxidase/peroxidase couple and dye precursors MBTH (3-methyl-2-benzothiazolinone hydrazone) and DMAB (3-dimethylaminobenzoic acid). The peroxide generated by oxidation of oxalate to CO2 reacted with the dye precursors in a peroxidase-catalyzed reaction to yield an indamine dye with absorption maximum at 590 nm. The concentration of oxalate was correlated with increased absoiption from dye. [Pg.365]

The configuration of the 4R,5R-dihydrodiol was established by application of the exciton chirality method (6). To minimize undesired interactions between the electric transition dipoles of the two j>-N,N-dimethylaminobenzoate chromophores and the dihydrodiol chromo-phore, a 4,5-dihydrodiol enantiomer was first reduced to 1,2,3,3a,4,5,7,8,9,10-decahydro and 4,5,7,8,9,10,11,12-octahydro derivatives (6). We found that it is not necessary to reduce the chrysene chromophore of a BaP 4,5-dihydrodiol enantiomer (Figure 2). Similarly, the absolute configurations of the K-region dihydrodiol enantiomers of BA (7), 7-bromo-BA (8), 7-fluoro-BA (9), 7-methyl-BA (10). and 7,12-dime thy 1-BA (DMBA) (7 ) can also be determined by the exciton chirality method without further reduction. [Pg.27]

By implication, the H-bonding within the dimer seems to be of some importance. The accuracy of this predic-tion was tested by mixing 3,5-dinitrobenzoic acid with p-dimethylaminobenzoic acid to see if a 1 1 crystalline material formed. In this case, H-bonding between the nitro and amino groups is precluded by the methylation of the amino groups. Apparently, a stoichiometric mixed solid does form (as evidenced by an unmistakable change in color to red), although the structure has not yet been determined. [Pg.468]

N, JV-Dimethyl-2-nitro-p -toluidine N, JV-Dimethyl-2-nitro-p -anisidine A,jV-E>iethyl-3-nitroaniline A -Dimethyl-d-nitrosoaniline A -Dimethyl-d-nitroaniline A,A-I)iethyl-4-nitroaniline N, A-Diethyl-3-methyl-4-nitro aniline N,N, 3,5-Tetramethyl-4-nitroaniline 4-N,N -Dimethylaminobenzophenone Ethyl 4-Ar,iV-dimethylaminobenzoate 4-(Ar,Ar-Dimethylamino)-/S-nitrostyrene 4-(jV,jV-Dimethylamino)benzaldehyde... [Pg.384]

Ethyl p-dimethylaminobenzoate and tert-butyl methyl ether (HPLC grade) were obtained from Aldrich Chemical Company, Inc., and used as received. [Pg.279]

Vitamin D2 3,5-dinitrobenzoate Ergocalciferol, 3,5-dinitrobenzoate (8,9) (4712-11-2) Ethyl p-dimethylaminobenzoate Benzoic acid, p-(dimethylamino)-, ethyl ester (8) Benzoic acid, 4-(dimethylamino)-, ethyl ester (9) (10287-53-3) tert-Butyl methyl ether Ether, tert-butyl methyl (8) Propane, 2-methoxy-2-methyl-(9) (1634-04-4)... [Pg.286]

Methyl 4-dimethyl ami nobenzoate Isoamyl 4-dimethylaminobenzoate Figure 3.30 Photosensitizers. [Pg.74]

C9Hi,N02, N,N-Dimethylanthranilic acid, 39B, 64 C9H,N02f p-N,N-Dimethylaminobenzoic acid, 44B, 78 CbMiiNS, N,N-Dimethylthiobenzamide, 42B, 70 C9Hi,N302S, 1-Methyl-4-salicyloyl thiosemicarbazide, 45B, 60 CioH40aS2, Pyromellitic dithioanhydride, 38B, 162... [Pg.44]


See other pages where Methyl-4-dimethylaminobenzoate is mentioned: [Pg.3098]    [Pg.99]    [Pg.192]    [Pg.3098]    [Pg.446]    [Pg.272]    [Pg.276]    [Pg.638]    [Pg.276]    [Pg.139]    [Pg.338]    [Pg.870]    [Pg.210]    [Pg.870]    [Pg.100]    [Pg.256]   
See also in sourсe #XX -- [ Pg.74 ]




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