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022 _a09743626
040 _aMSU
_bEnglish
_cMSU
_erda
050 0 0 _aQD31 JOU
100 1 _aYempala, Thirumal
_eauthor
245 1 0 _aOne-pot synthesis and UV-Visible absorption studies of novel tricyclic heterocycle tethered Xanthene-1,8-diones /
_ccreated by Thirumal Yempala, B. Sridhar, S. Kantevari
264 1 _aBangalore :
_bSpringer,
_c2015.
336 _2rdacontent
_atext
_btxt
337 _2rdamedia
_aunmediated
_bn
338 _2rdacarrier
_avolume
_bnc
440 _aJournal of chemical sciences
_vVolume 127, number 5,
520 3 _aA series of new tricyclic heterocyclic xanthene-1,8-diones tethered with chromophoric dibenzo [b, d]furan, dibenzo[b, d]thiophene and 9-methyl-9H-carbazoles were synthesized through one-pot condensation of dibenzo[b, d]furan-2-carbaldehyde, dibenzo[b, d] thiophene-2-carbaldehyde and 9-methyl-9H-carbazole-3-carbaldehyde with cyclic 1,3-dicarbonyls in the presence of recyclable PPA-SiO2 catalyst under solvent-free conditions. Further, UV-Visible absorption properties of all the synthesized compounds were investigated in CHCl3, THF and acetonitrile.
650 _aXanthenediones
_vDibenzo[b, d]furan
_x9-Methyl carbazole
700 1 _aSridhar, B.
_eco author
700 1 _aKantevari, S.
_eco author
856 _uhttps://doi.org/10.1007/s12039-015-0835-9
942 _2lcc
_cJA
999 _c169313
_d169313