Zobrazeno 1 - 10
of 10
pro vyhledávání: '"V. V. Kotova"'
Publikováno v:
Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, Vol 13, Iss 3, Pp 324-329 (2020)
2-Chlorobenzoic acid is used as an intermediate for diclofenac sodium production. In industry, it is obtained by oxidation of 2-chlorotoluene with potassium permanganate in an aqueous acidic medium. Due to the deficiency and cost of the oxidant as we
Externí odkaz:
https://doaj.org/article/51d5fa6fe660433d8e9d2a4b65587080
Publikováno v:
Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, Vol 13, Iss 1, Pp 23-30 (2020)
Acetophenone is an important by-product for the manufacture of drugs of calming effect. Known methods of its production don't have the future due to technological complexity, harsh synthesis conditions and low processing coefficients of raw materials
Externí odkaz:
https://doaj.org/article/69fde553df1b4ea4906f9f8f33df1abf
Publikováno v:
Russian Journal of Applied Chemistry. 86:841-844
The possibility of reducing the content of free formaldehyde in urea-formaldehyde resin by introducing into the final resin composition of diphthalic and dimaleic acids amides was studied. It was found that the amides synthesized are able to particip
Publikováno v:
RUDN Journal of Agronomy and Animal Industries, Vol 0, Iss 1, Pp 56-64 (2009)
Monitoring of root rot transmission and associated micromycetes was carried out on tomatoes and cucumber plants in the industrial greenhouse of agrocomplex «Moscovsky». The influence of various bacterium antagonists on root rot intensity was also e
Publikováno v:
Russian Journal of Applied Chemistry. 76:483-486
The influence of preparation conditions on the structure of low-toxic urea-formaldehyde resins and the possibility of preparing resins of linear-branched structure and resins containing urone rings were examined.
Publikováno v:
Russian Journal of Applied Chemistry. 81:901-903
The effect of acetylacetone and ammonia in urea-formaldehyde resins on the reactions occurring in their presence was examined. The formation of 2,6-dimethyl-3,5-diacetyl-l,4-dihydropyridine in urea-formaldehyde resins was confirmed by 1H NMR spectros
Publikováno v:
Russian Journal of Applied Chemistry. 78:685-687
The possibility of decreasing the content of free formaldehyde in urea-formaldehyde resins by varying the pH and urea-formaldehyde ratio in various synthesis steps was examined. Urea-formaldehyde resins containing no free formaldehyde were prepared.
Publikováno v:
Russian Journal of Applied Chemistry. 75:1369-1370
The effect of small additions of acetylacetone and ammonia to urea-formaldehyde resin is considered. The occurring processes, involving the formation of 2,6-dimethyl-3,5-diacetyl-1,4-dihydropyridine and condensation of this compound and acetylacetone
Publikováno v:
Gigiena i sanitariia. (1)
Publikováno v:
Voprosy pitaniia. (3)