6868-85-5Relevant articles and documents
SYNTHESIS AND MASS FRAGMENTATION PATTERN OF FLUORINATED SPIRO XANTHENE>-1',2,8'(1H,2'H,5'H)-TRIONES
Joshi, Krishna C.,Jain, Renuka,Arora, Seema
, p. 149 - 162 (1989)
Some new fluorine containing spiro-xanthenes and spiro-acridines have been synthesized.Spiro-xanthenes were obtained by the reaction of fluorinated indole-2,3-diones with 1,3-cyclohexadienone by three different routes.Further spiro-xanthenes were treated with ammonium acetate or fluorinated anilines in acetic acid medium resulting in corresponding spiro-acridines.All synthesized compounds have been characterized on the basis of elemental analyses, IR, 1H and 19F NMR and Mass spectral studies.
An efficient synthesis of spiro[indoline-3,9-xanthene]trione derivatives catalyzed by magnesium perchlorate
Chen, Chunfeng,Lv, Chunlei,Liang, Jianfeng,Jin, Jianqing,Wang, Lijun,Wu, Chunlei,Shen, Runpu
, (2017)
A simple and efficient method for the synthesis of spiro[indoline-3,9-xanthene]trione derivatives by means of condensation between isatins and 1,3-cyclohexanedione in the presence of a catalytic amount of magnesium perchlorate at 80?C in 50% aqueous ethanol medium has been described. Notably, the present method offers desirable advantages of good yields, simplicity of workup procedure, easy purification, and reduced reaction times.
Zinc(II)-poly(urea-formaldehyde) supported on magnetic nanoparticles: A hybrid nanocatalyst for green synthesis of spiropyrans, spiroxanthenes, and spiropyrimidines
Bodaghifard, Mohammad Ali,Mousavi, Zahra
, (2020/07/13)
Immobilization of metal ions onto inorganic supports has very interesting biological, industrial, and catalysis applications. In this study, CoFe2O4@SiO2@PUF@Zn(OAc)2 nanostructure was successfully fabricated by