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The Synthesis of some B6 Vitamin Halophosphates

S. Elshani ; Faculty of Pharmacy and Biochemistry, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia
Lj. Butula ; Faculty of Pharmacy and Biochemistry, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia
I. Butula ; Ruđer Bošković Institute, 41000 Zagreb, Croatia, Yugoslavia
D. Vikić-Topić ; Ruđer Bošković Institute, 41000 Zagreb, Croatia, Yugoslavia
A. Berton ; Department of Inorganic and Metallorganic Chemistry University of Padova, 35100 Padova, Italy
A. Iriarte ; School of Basic Life Sciences, University of Missouri - Kansas Kansas City, Missouri, 64110 USA

Puni tekst: engleski, pdf (13 MB) str. 161-171 preuzimanja: 230* citiraj
APA 6th Edition
Elshani, S., Butula, Lj., Butula, I., Vikić-Topić, D., Berton, A. i Iriarte, A. (1991). The Synthesis of some B6 Vitamin Halophosphates. Croatica Chemica Acta, 64 (2), 161-171. Preuzeto s https://hrcak.srce.hr/137310
MLA 8th Edition
Elshani, S., et al. "The Synthesis of some B6 Vitamin Halophosphates." Croatica Chemica Acta, vol. 64, br. 2, 1991, str. 161-171. https://hrcak.srce.hr/137310. Citirano 23.09.2020.
Chicago 17th Edition
Elshani, S., Lj. Butula, I. Butula, D. Vikić-Topić, A. Berton i A. Iriarte. "The Synthesis of some B6 Vitamin Halophosphates." Croatica Chemica Acta 64, br. 2 (1991): 161-171. https://hrcak.srce.hr/137310
Harvard
Elshani, S., et al. (1991). 'The Synthesis of some B6 Vitamin Halophosphates', Croatica Chemica Acta, 64(2), str. 161-171. Preuzeto s: https://hrcak.srce.hr/137310 (Datum pristupa: 23.09.2020.)
Vancouver
Elshani S, Butula Lj, Butula I, Vikić-Topić D, Berton A, Iriarte A. The Synthesis of some B6 Vitamin Halophosphates. Croatica Chemica Acta [Internet]. 1991 [pristupljeno 23.09.2020.];64(2):161-171. Dostupno na: https://hrcak.srce.hr/137310
IEEE
S. Elshani, Lj. Butula, I. Butula, D. Vikić-Topić, A. Berton i A. Iriarte, "The Synthesis of some B6 Vitamin Halophosphates", Croatica Chemica Acta, vol.64, br. 2, str. 161-171, 1991. [Online]. Dostupno na: https://hrcak.srce.hr/137310. [Citirano: 23.09.2020.]

Sažetak
A series of new halo-derivates of pyridoxine-3-O- or 5’-0-phosphates and pyridoxal-3-O- or 5’-0-phosphates have been synthesized. In the reaction of partially protected pyridoxine and pyridoxal (3-5) with phosphorusoxychlo- ride in the presence of triethylamine, the following dichlorophosphates were obtained: 3,4’-0-isopropylidenepyridoxine-5’-0-dichlorophosphate (6), 4,5’-0- isobutilidenepyridoxine-3-O-dichlorophosphate (7), and monoethylacetal-3-O- dicholorophosphate (8). Dichlorophosphates 6-8 reacted with NaF under catalytic action of 18-crown-6-ether, giving the corresponding difluorophos- phates 14-16. The 3,4’-0-isopropyiidene pyridoxine-5’-0-difluorophosphate (14), 4’,5’-isobutilydene-3-0-difluoro-phosphate (15) and monoethylacetal-3-O-di- fluorophosphate (16), in the reaction with aniline, yielded the corresponding monofluorophosphates in the form of aniline salts (17-19). The direct fluor- ination of pyridoxal-5’-phosphate with dinitrofluorobenzene yielded pyridox- al-5’-0-monofluorophosphate (I) which was isolated as cyclohexylamine salt (2).

Hrčak ID: 137310

URI
https://hrcak.srce.hr/137310

Posjeta: 332 *