272777-06-7Relevant articles and documents
Flavone-3′-sulfonamide
Kendi, Engin,Oezbey, Sueheyla,Bozdag, Oya,Ertan, Rahmiye
, p. 457 - 458 (2000)
In the title molecule, C15H11NO4S, the phenyl and benzene rings are quite planar, with maximum deviations from planarity of 0.009 (2) and 0.004 (1) A, respectively. The γ-pyrone ring deviates from planarity and makes a dihedral angle of 8.3 (3)° with the 2-phenyl substituent. The sulfonamide group is involved in N-H...O hydrogen bonding.
Chlorosulfonation of flavones
Silva, Ana M.G.,Tome, Augusto C.,Silva, Artur M.S.,Cavaleiro, Jose A.S.
, p. 113 - 124 (2007/10/03)
The chlorosulfonation of flavone and 4′-methoxyflavone with chlorosulfonic acid occurs regioselectively in ring B. The chlorosulfonyl flavones were converted into their corresponding sulfonamides and sulfonates by reaction with alkylamines, anilines, isop
