Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"heterocyclization"”.
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Synthesis of Amphibian Alkaloids and Development of Acetaminophen Analogues
… An enantioselective iridium-catalyzed N-heterocyclization reaction with either (R)- or (S)-1-phenylethylamine and 1-(5-methoxypyridin-3-yl)-1, 5-pentanediol was employed to generate the 2-(pyridin-3-yl)-piperidine ring system in 69-72% yield. A cis-2, 5-disubstitued pyrrolidine building …
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Identification and preliminary characterization of the 2,5-diphenyloxazole biosynthetic pathway in streptomyces polyantibioticus SPRT
… is converted to a diphenyloxazole derivative by heterocyclization and a final decarboxylation step leads to DPO. To determine whether the hypothesis pertaining to the DPO biosynthetic pathway was correct, initial efforts were made to identify the genes coding for benzoic acid synthesis and the …
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INTRAMOLECULAR CARBON-NITROGEN COUPLING FROM ISOLATED MONOHYDROCARBYL PALLADIUM(IV) COMPLEXES PREPARED USING H2O2 AS TERMINAL OXIDANT
… with respect to [Br-] in solution. Catalytic heterocyclization reaction was achieved using H2O2 with N-acetyl-2-aminobiphenyl to form N-acetylcarbazole with yields dependent on temperature and rate of addition of H2O2.
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Practical applications of genomics to natural product discovery and biosynthesis
… reactions - in this case a macroamidine heterocyclization. Substrate tolerance and recognition are explored for the unique substrate, which contains bipartite peptide regions for modification and binding by the enzymes. More broadly, the genomic distribution of atypical heterocyclases are …
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2,3-Dihalofenoles: sustratos de partida versátiles para la síntesis de heterociclos funcionalizados regioselectivamente
Esta Tesis Doctoral se ha centrado en la preparación de diferentes heterociclos funcionalizados que presentan gran interés en Química Orgánica, al formar parte del esqueleto de numerosos compuestos con actividad biológica o farmacológica. En concreto, se han puesto a punto procedimientos para la …