Toluyl acids

Beilstein Handbook Reference) AI3-15626 Benzoic acid, 3-methyl- BRN 0970526 EINECS 202-723-9 m-Methylbenzoic acid m-Toluic acid m-Toluylic acid meta-Toluic acid NSC 2214. Used in manufacture of N,N-diethyl-m-toluamide, a broad-spectnim insect repellent. Crystals mp = 108.7° bp = 263° d 2 = i.054slightly soluble in H2O, CHCI3. very soluble in EtOH, Et20 slightly soluble in H2O, soluble in organic solvents. CK Witco Chem. Cap. CK Witco Chem. Ltd. MitsubisN Gas. 

Beilstein Handbook Reference) AI3-15625 Benzoic acid, 2-methyl- BRN 1072103 EINECS 204-284-9 2-Methylbenzoic acid NSC 2193 o-Methylbenzoic acid Orthotoluic acid Toluic acid 2-Toluic acid o-Toluic acid o-Toluylic acid. Bxteriostat. Prisms or needles, mp = 103.7° bp = 259° d" = 1.062 Xm = 229,278 nm (c = 8460,1250, MeOH) insoluble in H2O, soluble In CHCI3, very soluble in EtOH, EtzO. Mitsubishi Gas. 

Beilstein Handbook Reference), A13-15627 Benzoic acid, 4-methyl- BRN 0507600 p-Carboxytoluene Crithminic acid EINECS 202-803-3 4-Methylbenzoic acid NSC 2215 p-Methylbenzoic acid p-Toluic acid 4-Toluic acid p-Toluylic acid. An animal feed supplement used in agricultural chemicals. Crystals mp = 179.6° bp = 274-275° Xm = 236,280 nm (e = 13500, 614, MeOH) insoluble in H2O, slightly soluble In TEA, very soluble in EtOH, Et20, MeOH. Degussa-Huls Cap. National Starch Chem. UK Penta Mfg. 

CAS 99-04-7 EINECS/ELINCS 202-723-9 Synonyms 3-Methylbenzoic acid m-Methylbenzoic acid m-Toluylic acid... 

CAS 118-90-1 EINECS/ELINCS 204-284-9 Synonyms 2-Methylbenzoic acid o-Methylbenzoic acid Orthotoluic acid o-Toluylic acid... 

CAS 99-94-5 EINECS/ELINCS 202-803-3 Synonyms 4-Methylbenzoic acid p-Methylbenzoic acid p-Toluylic acid... 

Methylanthraquinone. Use 10 5 g. of p-toluyl-o-benzoic acid (preceding Section) and 90 g. (46 ml.) of fuming sulphuric acid (20 per cent. SO3). RecrystaUise the product from alcohol in the presence of a little decolourising carbon. The yield of pure p-methylanthraquinone, m.p. 176°, is 7 - 5 g. 

Radicaloid substitution has not been extensively studied in the thiophene series. Molecular orbital calculations indicate that substitution should occur in the a-position. This has been found to be the case in the Gomberg-Bachmann coupling of diazohydroxides with thiophenes which has been used for the preparation of 2-(o-nitro-phenyl) thiophene, 2-(p-toluyl) thiophene, " " and 2-(p-chloro-phenyl)thiophene. " Coupling in the /8-position has been used for the preparation of 1,3-dimethyl-4,5-benzisothionaphthene (148) from 2-amino-tt-(2,5-dimethyl-3-thienyl)cinnamic acid (149). A recent investigation describes the homolytic phenylation of 2- and 3-phenyl-... 

Di-p-toluyl-desoxy-D-ribofuranosyl chloride Sodium hydroxide Acetic acid... 

A determination of traces of low (Ci to C4) aliphatic amines in the atmosphere consists of passing air through an absorber containing phosphorous acid, derivatizing with m-toluyl chloride and end analysis by HPLC-UVD LOD 1-5 pmol of amine, corresponding to concentrations lower than 0.1 pg/m3 of air, in a 300 L sample232. 

Because the accuracy of the data for three of the diacyl peroxides is in question, we will attempt to derive enthalpies of formation for them from the reverse of equations 15 and 16. The enthalpy of reaction 15 for dibenzoyl peroxide, using enthalpy of formation values of unquestioned accurac)f, is —400.8 kJmor. This is the same as the ca —398 kJmol for the hquid non-aromatic diacyl peroxides discussed above. Using the solid phase enthalpy of reaction for dibenzoyl peroxide and the appropriate carboxylic acid enthalpies of formation, the calculated enthalpies of formation of bis(o-toluyl) peroxide and bis(p-toluyl) peroxide are —432.2 and —457.6 kJ moU, respectively. From the foregoing analysis, it would seem that the measured enthalpy of formation is accurate for the bis(p-toluyl) peroxide but is not for its isomer. The analysis for dicinnamoyl peroxide is complicated by there being two enthalpies of formation for frawi-cinnamic acid that differ by ca 12 kJmoU. One is from our archival source (—336.9 12 kJmoU ) and the other is a newer measurement (—325.3 kJmol ). The calculated enthalpies of formation of dicinnamoyl peroxide are thus —273.0 and —249.8 kJmoU. Both of these results are ca 80-100 kJmol less negative than the reported enthalpy of formation. 

Homopolymers of simple alkyl and aryl isocyanides (Mv.p.osm > 1000-4000) are insoluble in all common solvents. This statement, however, requires elaboration of the fact that trichloroacetic acid successfully disperses these polymers. Observations with poly(cr-toluyl isocyanide) are informative, since the polymer is canary yellow in color, and turns to dark brown in trichloroacetic acid—acting in the manner of an acid-base indicator dye. Dilution with water of the trichloroacetic acid solution of poly(aqueous alkali produces the original yellow color. It appears that the polyisocyanide is dispersed in trichloroacetic acid as a pro-tonated species. Conductimetric experiments on poly(a-phenylethyl isocyanide) in dichloroacetic acid confirm this view (25). 

Methyl anthraquinone has been obtained by the oxidation of /3-methyl anthracene by several investigators 1 and material of the same origin, obtained by the benzene-extraction of crude commercial anthraquinone,2 has been fully described. As regards the synthesis from phthalic anhydride and toluene, both the preparation and properties of />-toluyl-o-benzoic acid 3 and the complete synthesis 4 have been the subject of several papers. This acid has also been prepared from o-carbomethoxy benzoyl chloride and toluene.5 The phthalic anhydride synthesis of anthraquinone derivatives in general has received considerable attention. An account of this work, together with extensive references, is given by Barnett.6... 

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