Abstract
Upon acetylation, (2-phenyl)dihydrobenzopyrone- and 2′-hydroxychalcone thiosemicarbazones (1c, 2c, 3c, and 7c) form 2,2-disubstituted 5-acetamido-3-acetyl-2,3-dihydro-1,3,4-thiadiazoles (1i, 2i, 4i, and 8i) instead of the diacetylthiosemicarbazones (2e, 8e) claimed in the literature. Similarly, the reactions of the aromatic ketone thiosemicarbazones 9c, 10c and 11d result in the formation of thiadiazolines (9i, 10i, and 11k, respectively), flavone thiosemicarbazone (6c), however, is degraded to flavone diacetylhydrazone (6g) under the same conditions. The synthesis of the flavanone spiro-1,3,4-oxadiazoline 2h is also described.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
