Reference

Photochemical transformations of simple aromatic hydrocarbons in the soil

Photochemical transformations of simple aromatic hydrocarbons in the soil. Marunyak, M. N.; Sirotkina, N.In this study， 66486-05-3 and 88-99-3 are also used. N.; Denisenko, L. N. (Kiev, USSR). Visn. Sil's'kogospod. Nauki, (12), 82-4 (Ukranian) 1986. CODEN: VSNAAG. ISSN: 0042-7020. DOCUMENT TYPE: Journal CA Section: 19 (Fertilizers, Soils, and Plant Nutrition) Section cross-reference(s): 4 In order to study the possibilities of photochem. transformation of soil org. contaminants, model studies with UV irradn. of sod-podzolic soil samples spiked with arom. hydrocarbons (benzene [71-43-2], toluene [108-88-3] and xylene [1330-20-7]) were conducted in the presence of NO2. No significant effect of UV irradn. on the nitration of benzene was obsd. Toluene (esp. during nitration at 30-35°) formed nitrotoluene [1321-12-6] and phenyl nitromethane [622-42-4]. O-Xylene formed o-nitroxylene [25168-04-1] and toluylnitromethane [66486-05-3]. UV irradn. of soils contg. arom. hydrocarbons and NO2 resulted also in formation of carboxylic acids: oxalic [144-62-7], benzoic [65-85-0], m-toluic [99-04-7], and phthalic [88-99-3]. .

Microbial production of compounds difficult to obtain chemically

Microbial production of compounds difficult to obtain chemically. Hellwig, Manfred; Knackmuss, Hans Joachim (Gesellschaft fuer Strahlen- und Umweltforschung m.b.H., Ger.). Ger. Offen. DE 2548454 5 May 1977, 19 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07D307-58. APPLICATION: DE 75-2548454 29 Oct 1975. DOCUMENT TYPE: Patent CA Section: 16 (Fermentations) A process is described for the manuf. of org. compds. by fermn., that are difficult to produce by chem. methods. Thus, (+)-2,5-dihydro-4-methyl-5-oxo-2-furanacetic acid (I) [61199-03-9] was manufd. by cooxidation of 3-methylbenzoate [99-04-7] using Pseudomonas strain B 13. The organism was grown with aeration and shaking in a chlorobenzoate-mineral salts medium at 30.degree., with continuous addn. of chlorbenzoate in such a way as to maintain the concn. between 1.0 and 5 mM. When the mediu reached a turbidity of E546 nm 12.5, a M aq. sodium salt soln. of 3-methylbenzoate was added in 25 mmol portions. I was sepd. by ether extn. and drying; yield was 82% of the theor.