Reaction of the title compound with hydrazine in the presence of air gives the 1-unsubstituted parent system via oxidative dehydrazination of the 1-hydrazino intermediate. The latter can be obtained in high yield by carrying out the hydrazinolysis step under inert gas, and it is smoothly converted into [1,2,4]-triazolo[4',3':1,6]pyridazino[4,5- b]indoles.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147308 | PMC |
http://dx.doi.org/10.3390/91000849 | DOI Listing |
Front Chem
May 2024
Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.
Functional group compatibility in an amide bond cleavage reaction with hydrazine was evaluated for 26 functional groups in the functional group evaluation (FGE) kit. Accurate and rapid evaluation of the compatibility of functional groups, such as nitrogen-containing heterocycles important in drug discovery research, will enhance the application of this reaction in drug discovery research. These data will be used for predictive studies of organic synthesis methods based on machine learning.
View Article and Find Full Text PDFMolecules
September 2004
Chemistry Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt.
Reaction of the title compound with hydrazine in the presence of air gives the 1-unsubstituted parent system via oxidative dehydrazination of the 1-hydrazino intermediate. The latter can be obtained in high yield by carrying out the hydrazinolysis step under inert gas, and it is smoothly converted into [1,2,4]-triazolo[4',3':1,6]pyridazino[4,5- b]indoles.
View Article and Find Full Text PDFBoll Chim Farm
June 1997
Department of Organic Pharmaceutical Chemistry, Faculty of Pharmacy, Zagazig University, Egypt.
Hydrazinolysis of ethyl [(4-methyl-6-phenylpyrimidin-2-yl)oxy]acetate (1) gives the unexpected bis(4-methyl-6-phenylpyrimidin-2-yl)hydrazine (2). The desired [(4 methyl-6-phenylpyrimidin-2-yl)oxy]acetohydrazide (3) was prepared from the ester (1) with hydrazine in absolute ethanol. Starting from 3, several new hydrazones, 1,3,4 oxadiazoles, 1,3,4-thiadiazoles, 1,2,4-triazoles and 1,3-thiazoles have been synthesized.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!