Palladium-Catalyzed Chemoselective Oxygenation of C(sp<sup>2</sup>)–H and C(sp<sup>3</sup>)–H Bonds in Isatins
作者:Muniyappa Vijaykumar、Chandini Pradhan、Rajesh G. Gonnade、Benudhar Punji
DOI:10.1021/acs.orglett.3c00342
日期:2023.3.24
The palladium-catalyzed chemoselective C(sp2)–H and C(sp3)–H bond oxygenation of substituted isatin derivatives is reported. This mild protocol exhibits the C5 C(sp2)–H oxygenation of isatins through electrophilic intermolecular C–H palladation in concentrated solutions using PhI(OAc)2 or Selectfluor as an oxidant, whereas it exhibits–N–CH3 C(sp3)–H oxygenation in dilute solutions via carbonyl-assisted
[EN] N-[(AMINOSULFONYL)PHENYL]-2-(1,2-DIHYDRO-2-OXO-3H-INDOL-3-YLIDENE)-HYDRAZINECARBOTHIOAMIDE DERIVATIVES FOR TREATING CANCER AND IMMUNOLOGICAL DISORDERS<br/>[FR] DÉRIVÉS DE N-[(AMINOSULFONYL)PHÉNYL]-2-(1,2-DIHYDRO-2-OXO-3H-INDOL-3-YLIDÈNE)-HYDRAZINECARBOTHIOAMIDE POUR LE TRAITEMENT DU CANCER ET DE TROUBLES IMMUNOLOGIQUES
申请人:ISTANBUL UNIV REKTORLUGU
公开号:WO2017099695A1
公开(公告)日:2017-06-15
N-[(aminosulfonyl)phenyl]-2-(1,2-dihydro-2-oxo-3H-indol-3-ylidene)-hydrazinecarbothioamide derivatives of the following formula (III) for treating cancer and immunological disorders. R5, R6 and R7 are each independently selected from hydrogen and a sulfonamide group, provided that at least one of R5, R6 or R7 is a sulfonamide group. The substituents R1 to R4 are each independently either hydrogen or one of the substituents defined in the claims.