Tripathi; Koul; Taneja, Subhash C, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2010, vol. 49, # 11, p. 1561 - 1564
作者:Tripathi、Koul、Taneja, Subhash C
DOI:——
日期:——
Tripathi; Koul; Taneja, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2009, vol. 48, # 2, p. 301 - 304
作者:Tripathi、Koul、Taneja
DOI:——
日期:——
Transition metal free regio-selective C–H hydroxylation of chromanones towards the synthesis of hydroxyl-chromanones using PhI(OAc)<sub>2</sub> as the oxidant
作者:N. Viswanadh、Ganesh S. Ghotekar、Mahesh B. Thoke、R. Velayudham、Aslam C. Shaikh、M. Karthikeyan、M. Muthukrishnan
DOI:10.1039/c7cc08588e
日期:——
The chromanone scaffold is considered as a privileged structure in drug discovery. Herein, we report a highly efficient PhI(OAc)2 mediated regioselective, direct C–H hydroxylation of chromanones. This method offers easy access to substituted 6-hydroxy chromanones in moderate to good isolated yields, thus paving the way for their pharmaceutical studies.
Synthesis and antitumor studies of novel benzopyrano-1,2,3-selenadiazole and spiro[benzopyrano]-1,3,4-thiadiazoline derivatives
作者:S. I. El-Desoky、F. A. Badria、M. A. Abozeid、E. A. Kandeel、A. H. Abdel-Rahman
DOI:10.1007/s00044-012-0201-0
日期:2013.5
derivatives incorporating benzopyranone moiety from readily available starting materials was described. Reaction of different 2,2-dialkyl and 2,2-spirocycloalkyl dihydrobenzopyranones 1a–e with semicarbazidehydrochloride and thiosemicarbazide afforded the corresponding semicarbazones 2a–e and thiosemicarbazones 3a–e, respectively. Furthermore, cyclization of the semicarbazones 2a–e via oxidation using selenium