TY  - BOOK
AU  - Yempala,Thirumal
AU  - Sridhar,B.
AU  - Kantevari,S.
TI  - One-pot synthesis and UV-Visible absorption studies of novel tricyclic heterocycle tethered Xanthene-1,8-diones
SN  - 09743626
AV  - QD31 JOU 
PY  - 2015///
CY  - Bangalore
PB  - Springer
KW  - Xanthenediones
KW  - Dibenzo[b, d]furan
KW  - 9-Methyl carbazole
N2  - A 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
UR  - https://doi.org/10.1007/s12039-015-0835-9
ER  -