217819-11-9Relevant academic research and scientific papers
Chemoselective Oxidative Spiroetherification and Spiroamination of Arenols Using I+/Oxone Catalysis
Uyanik, Muhammet,Sahara, Naoto,Katade, Outa,Ishihara, Kazuaki
, p. 560 - 564 (2020)
We developed a chemoselective oxidative dearomative spiroetherification and spiroamination of arenols using I+/oxone catalysis. The intramolecular dearomative C-O and C-N couplings proceeded much more efficiently under slightly acidic condition
Cascade nucleophilic addition-cyclic Michael addition of arynes and phenols/anilines bearing ortho α,β-unsaturated groups: Facile synthesis of 9-functionalized xanthenes/acridines
Huang, Xian,Zhang, Tiexin
supporting information; experimental part, p. 506 - 509 (2010/03/30)
(Chemical Equation Presented) A facile synthesis of xanthenes and acridines based on a cascade nucleophilic addition-cyclic Michael addition process of arynes and phenols/anilines substituted with α,β-unsaturated groups at the ortho positions is described
Biaromatic compounds and pharmaceutical and cosmetic compositions comprising them
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Page column 25, (2010/02/04)
Biaromatic compounds connected by a propynylene or ailenylene bond, corresponding to the formula (I).
Bi-aromatic compounds and pharmaceutical and cosmetic compositions containing same
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, (2008/06/13)
PCT No. PCT/FR98/01238 Sec. 371 Date Mar. 23, 1999 Sec. 102(e) Date Mar. 23, 1999 PCT Filed Jun. 12, 1998 PCT Pub. No. WO98/56783 PCT Pub. Date Dec. 17, 1998The invention concerns bi-aromatic compounds of formula (I) in which Ar represents (a), Z being O or S, R1 is -CH3, -CH2-O-R6, -OR6 or -COR7; R2 is -OR8, -SR8 or a polyether radical if in the latter case R4 is C1-C20 alkyl and is in ortho or meta position relative to X-Ar; R3 is alkyl or R2 and R3 together form a cycle optionally interrupted by O or S; R4 is aryl radical; R5 is H, halogen, C1-C20 alkyl or -OR8; R6 is H, alkyl or -COR9; R7 is H, alkyl, -N(r')(r'') or -OR10; R8 is H, alkyl or -COR9; R9 is alkyl; R10 is H, C1-C20 alkyl, alkenyl, monohydroxyalkyl or polyhydroxyalkyl, aryl or aralkyl or a sugar residue, r' and r'' are H, alkyl mono- or polyhydroxyalkyl, aryl, an amino acid or sugar residue or together form a heterocycle, X represents a radical of formula (d) or (e) in which R11 is H or -OR6; R12 is H or alkyl; or R11 and R12 form an oxo radical, and the salts, optical and geometrical isomers of the compounds of formula (I).
