naa a22 4500 510734383 CHVBK 20180411083004.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12039-013-0442-6 doi (NATIONALLICENCE)springer-10.1007/s12039-013-0442-6 A simple synthesis of E -9-aryl-5-arylidene-1-oxo-1,2,3,4,5,6,7, 8-octahydroxanthenes and their lower analogues from E , E - α , α ′-diarylidenecycloalkanones [Elektronische Daten] [SWATI SAMANTA, ARPITA GUPTA, RINA MONDAL, ASOK MALLIK] A simple and efficient synthesis of E-9-aryl-5-arylidene-1-oxo-1,2,3,4,5,6,7,8-octahydroxanthenes and their lower analogues has been developed by amberlyst-15 catalysed cyclocondensation of E,E-α,α′-diarylidenecyclohexanones and E,E-α,α′-diarylidenecyclopentanones, respectively, with cyclohexan-1,3-diones. The products were obtained in moderate to good yield and their structures were confirmed from analytical and spectral data. Graphical Abstract A simple and efficient synthesis of E-9-aryl-5-arylidene-1-oxo-1,2,3,4,5,6,7,8-octahydroxanthenes and their lower analogues has been developed by amberlyst-15 catalysed cyclocondensation of E,E-α,α′-diarylidenecyclohexanones and E,E-α,α′-diarylidenecyclopentanones, respectively, with cyclohexan-1,3-diones in anhydrous acetonitrile. Indian Academy of Sciences, 2013 Cyclocondensation nationallicence amberlyst-15 nationallicence E , E - α , α ′-diarylidenecycloalkanones nationallicence xanthene derivatives and their lower analogues nationallicence SAMANTA SWATI Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut GUPTA ARPITA Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut MONDAL RINA Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut MALLIK ASOK Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut Journal of Chemical Sciences Springer India 125/4(2013-07-01), 737-743 0974-3626 125:4<737 2013 125 12039 https://doi.org/10.1007/s12039-013-0442-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-013-0442-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- SAMANTA SWATI Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut NATIONALLICENCE 700 1- GUPTA ARPITA Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut NATIONALLICENCE 700 1- MONDAL RINA Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut NATIONALLICENCE 700 1- MALLIK ASOK Department of Chemistry, Jadavpur University, 700 032, Kolkata, India aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer India 125/4(2013-07-01), 737-743 0974-3626 125:4<737 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer