Benzoic acid, 4-methoxy-, methyl ester

Anisic acid, methyl ester [Benzoic acid, 4-methoxy-, methyl ester], 55, 40, 41 o-Amsidine [Benzenamine, 2-methoxy-], p-bromination of, 55, 23 [10] ANNULFNE, [ 1 l-Oxablcyclo[4 4 1]-undeca-l,3,5,7,9-pentaene], 55, 86 Anthramhc acid [Benzoic acid, 2-amino-], p-brominahon of, 55, 23 Apparatus, distillation of benzocyclopro-pene for, 55,13... 

Benzoic acid, tert-butyl ester [Benzoic acid, 1,1-dimethylethyl ester], as impunty in ferf-butyUithium, 55, 125 Benzoic acid, 4-methoxy-, methyl ester, 55, 40... 

Benzoic acid, o bromo-, 58, 56 Benzoic acid, 4-bromo-, 56, 86 Benzoic acid, fcrr-butyl ester, as impurity m fcrfbuty111 thium, 55, 125 Benzoic acid, 4-chloro-, 56, 86 Benzoic acid, 2,4-dimethoxy-, 56, 31 Benzoic acid, 3,4-dimethoxy-, 56, 31 Benzoic acid, 3,4-dimethyl-, 56, 31 Benzoic acid 3,5-dimethyl-, 56, 86 Benzoic acid, 4-hydroxy, 56, 60 Benzoic acid, 4-methoxy-, methyl ester, 55,40... 

Benzoic acid, 4-methoxy-, methyl ester methyl anisate 172a, 174b, 1053, 3266 ... 

Synonyms p-Anisic acid, methyl ester Benzoic acid, 4-methoxy-, methyl ester Benzoic acid, p-methoxy-, methyl ester Methyl anisate Methyl 4-methoxybenzoate Methyl p-methoxybenzoate Classification Aromatic ester Empirical CgHio03... 

Benzohydroxamic acid dioxouranium complexes, 507 metal complexes, 506, 507 as metal precipitant, 506 Benzohydroxamic acid, iV-methyl-metal complexes, 506 Benzohydroxamic acid, N-phenyl-metal complexes, 507 reactions with carboxylic acids, 507 as metal precipitant, 506 titanium complexes, 506 Benzohydroxamic acid, A -(o-tolyl)-as metal precipitant, 506 Benzohydroxamic acid, N-wi-tolyl-p-methoxy-metal complexes, 506 Benzoic acid, dihydroxy-beryllium(II) complexes, 481 Benzoic acid, o-mercapto-esters... 

Benzoic acid, 3-hydroxy-6-methoxy-, methyl ester V-3, IX.A-22, X-2 ... 

Benzoic acid, 4-hydroxy-3-methoxy-, methyl ester. See Methyl vanillate Benzoic acid, 2-hydroxy-, 5-methyl-2-(1-methylethyl) cyclohexyl ester. See Menthyl salicylate... 

Synonyms o-Anisic acid, methyl ester Benzoic acid, 2-methoxy-, methyl ester Dimethyl salicylate o-Methoxybenzoic acid methyl ester o-M ethoxy methyl benzoate Methyl o-anisate Methyl 2-methoxybenzoate Methylsalicylate methyl ester Empiricai C9H10O3 Formuia CH3OC6H4CO2CH3 Properties M.w. 166.18 dens. 1.157 b.p. 248 C flash pt. > 230 F ref. index 1.5340 Toxicology LD50 (oral, rat) 3800 mg/kg, (skin, rabbit) > 5 g/kg mod. toxic by ing. si. toxic by skin contact TSCA listed Hazardous Decomp. Prods. Heated to decomp., emits acrid smoke and irritating vapors Uses Synthetic flavoring agent in foods and pharmaceuticals... 

Benzoic acid-3,6-dichloro-2-methoxy-2-ethoxy-l-methyl-2-oxoethyl ester [87214-73-1]... 

Figure 12.12 THM GC/MS curves of a Winsor Newton lemon alkyd paint (a) and of an alkyd sample taken from Fontana s work Concetto spaziale (1961) (b). Peak assignments 1, 1,3 dimethoxy 2 propanol 2, 1,2,3 trimethoxy propane 3, 3 methoxy 1,2 propandiol 4, 4 chloro benzenamine 5, 3 methoxy 2,2 bis(methoxymethyl) 1 propanol 6, 3 chloro N methyl benzenamine 7, 3 methoxy 2 methoxymethyl 1 propanol 8, 4 chloro N methyl benzenamine 9, phthalic anhydride 10, 3 chloro 4 methoxy benzenamine 11, suberic acid dimethyl ester 12, dimethyl phthalate 13, azelaic acid dimethyl ester 14, sebacic acid dimethyl ester 15, palmitic acid methyl ester 16, oleic acid methyl ester 17, stearic acid methyl ester 18, 12 hydroxy stearic acid methyl ester 19, 12 methoxy stearic acid methyl ester 20, styrene 21, 2 (2 methoxyethoxy) ethanol 22, 1,1 oxybis(2 methoxy ethane) 23, benzoic acid methyl ester 24, adipic acid dimethyl ester 25, hexadecenoic acid methyl ester 26, dihydroisopimaric acid methyl ester 27, dehydroabietic acid methyl ester 28, 4 epidehydroabietol...

Substituent effects on the A,u I reaction have been studied by Bender and Chen55. These authors measured the rates of hydrolysis of a series of 4-substituted 2,6-dimethylbenzoates in 9.70 M sulphuric acid at 25°C, and found that the values for the first-order coefficients with 4-methoxy, 4-methyl, 4-unsubstituted and 4-bromo-compounds (5.0, 0.37, 0.033 and 0.01 x I0 4 sec-1, respectively) are satisfactorily correlated by the Hammett equation, following cr+ with a slope p = —3.22. Since the esters are not fully protonated in 9.70 M H2SOj, part of this factor is due to the effects of the 4-substituent on the protonation equilibrium, p for the protonation of substituted benzoic acids is about — l35, but is likely to be considerably smaller for di-ortho-substituted compounds, since the conjugative interaction of the p-substituents with the protonated carboxyl group requires coplanarity with the ring. 

If we compare the acid strengths Ka) of a series of substituted benzoic acids with the strength of benzoic acid itself (Table 26-4), we see that there are considerable variations with the nature of the substituent and its ring position, ortho, meta, or para. Thus all three nitrobenzoic acids are appreciably stronger than benzoic acid in the order ortho para > meta. A methoxy substituent in the ortho or meta position has a smaller acid-strengthening effect, and in the para position decreases the acid strength relative to benzoic acid. Rate effects also are produced by different substituents, as is evident from the data in Table 26-5 for basic hydrolysis of some substituted ethyl benzoates. A nitro substituent increases the rate, whereas methyl and methoxy substituents decrease the rate relative to that of the unsubstituted ester. 

Bromobenzyl-3-methoxy-benzoic acid methyl ester Silver oxide Sodium hydride Methyl iodide... 

Sulfonylureas form a group of selective herbicides. The general structure is given below in Table 7.4. Rj and Rj generally are substituted heterocyclic rings, e.g., 4,6-dimethylpyrimidin-2-yl and 2-(benzoic acid methyl ester) for sulfometuron methyl and 4-methoxy-6-methyl-l,3,5-triazin-2-yl and l-(2-chlorophenyl) for chlorsulfuron, respectively. The compoimds are thermally labile and cannot readily be derivatized and are therefore not amenable to GC-MS. 

Hydroxy-3,5-dimethoxy-benzeneacetic acid, methyl ester (methyl homosyringate) 4-Hydroxy-3,5-dimethoxy-benzoic acid (syringic acid) 4-Hydroxy-3,5-dimethoxy-benzoic acid ethyl ester (ethyl syringate) 4-Hydroxy-3,5-dimethoxy-benzoic acid methyl ester (methyl syringate) 4-Hydroxy-3,5-dimethoxybenzaldehyde (syringaldehyde) 4-Hydroxy-3-methoxy-benzeneacetic acid methyl ester (methyl homovanillate) 4-Hydroxy-3-methoxy-benzoic acid (vanillic acid)... 

Hydroxy-3-methoxy-benzoic acid ethyl ester (ethyl vanillate) 4-Hydroxy-3-methoxy-benzoic acid ethyl ether (vanillyl ethyl ether) 4-Hydroxy-3-methoxy-benzoic acid methyl ester (methyl vanillate) 4-Hydroxy-3-methoxy-benzoic acid methyl ether (vanillyl methyl ether) 4-Methyl-2-(2 -methyl-l-propenyl)-phenol 4-Methyl-2,6-dimethoxyphenol (methylsyringol)... 

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