Detail of "6738-23-4"

Reference

Camembert aromas

Camembert aromas. Demonstration of other minor compounds. Dumont, J. P.; Roger, Sylviane; Adda, J. (Lab. Technol. Lait., Inst. Natl. Rech. Agron., Jouy-en-Josas, Fr.). Lait, 56(559-560), 595-9 (French) 1976. CODEN: LAITAG. DOCUMENT TYPE: Journal CA Section: 17 (Foods) As was demonstrated by gas chromatog.-mass spectrometry, a Freon 11 ext. of an aq. soln. of volatiles of Camembert cheese (isolated by low-temp. vacuum distn.) contained, in addn. to hydrocarbons already identified (cf. J. P. Dumont, et al., 1974 and M. Moines, et al., 1973, 1975), bis(methylthio) methane [1618-26-4], diethyl disulfide [110-81-6], 2,4,5-trithiahexane [42474-44-2], anisole [100-66-3], 4-methylanisole [104-93-8], 2,4-dimethylanisole [6738-23-4], as well as the C6 and C8 esters of 3-methyl-1-butanol. The CH2Cl2 ext., made next, contained alcs. and phenols almost exclusively; in addn. to compds. already reported (cf. J. P. Dumont, et al., 1974) 3-methylthiopropanol [505-10-2] and 3-methyl-2-cyclohexen-1-ol [21378-21-2] were identified. The CH2Cl2 ext. residue had the flavor of Camembert cheese but was flat; compds. of the Freon ext. added the pungent and floral principles.Except for chemicals metioned above, 100-66-3 and 110-81-6 are also used. .

Photochemical nitration by tetranitromethane

Photochemical nitration by tetranitromethane. Part XXXVII. Adduct formation and the regiochemistry of attack of trinitromethanide ion on radical cations in the photochemical reactions of 2-methyl-, 2,3-dimethyl- and 2,4-dimethylanisoles. Butts, Craig P.; Eberson, Lennart; Hartshorn, Michael P.; Robinson, Ward T.; Timmerman-Vaughan, David J. (Department of Chemistry, University of Canterbury, Christchurch, N. Z.). Acta Chemica Scandinavica, 51(1), 73-87 (English) 1997 Munksgaard. CODEN: ACHSE7. ISSN: 0904-213X. 6738-23-4 and 578-58-5 are also in the experiment. DOCUMENT TYPE: Journal CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Section cross-reference(s): 22 The photolysis of the charge transfer (CT) complex of tetranitromethane and 2-methylanisole in dichloromethane at 20°C gives epimeric 1-methoxy-6-methyl-6-nitro-3-trinitromethylcyclohexa-1,4-dienes in addn. to 2-methyl-4-trinitromethylanisole and 2-methyl-4-nitroanisole. Similar reaction of 2,3-dimethylanisole in dichloromethane gave nitro-trinitromethyl adducts, hydroxy-trinitromethyl adducts, 2,3-dimethyl-5-trinitromethylanisole, 4-methoxy-2,3-dimethylbenzonitrile N-oxide, 2,3-dimethyl-4-trinitromethylanisole, 2,3-dimethyl-4-nitroanisole, 2,3-dimethyl-4,6-dinitrophenol, 3-methoxy-4,5-dimethylbenzoic acid, and a hydroxy dinitro compd. The photolysis of the CT complex of 2,4-dimethylanisole with tetranitromethane in dichloromethane gave epimeric 1-methoxy-4,6-dimethyl-6-nitro-3-trinitromethylcyclohexa-1,4-dienes, together with 4,6-dimethyl-3-trinitromethylanisole, 4,6-dimethyl-2-nitrophenol, 4,6-dimethyl-2-trinitromethylanisole, 4,6-dimethyl-3-nitroanisole, 4,6-dimethyl-2-nitroanisole, and 4,6-dimethyl-4-nitrocyclohexa-2,5-dienone. The modes of formation of the above products are discussed, including the effects of the reaction solvent on those processes. The X-ray crystal structure of 1-methoxy-2-methyl-c-6-nitro-r-3-trinitromethylcyclohexa-1,4-diene is reported. .