TY  - JOUR
AU  - Zeba N. Siddiqui
AU  - Saima Tarannum
TI  - Xanthan sulfuric acid: An efficient and biodegradable solid acid catalyst for the synthesis of bis(indolyl)methanes under solvent-free conditions
JO  - Comptes Rendus. Chimie
PY  - 2013
SP  - 829
EP  - 837
VL  - 16
IS  - 9
PB  - Elsevier
DO  - 10.1016/j.crci.2013.04.013
LA  - en
ID  - CRCHIM_2013__16_9_829_0
ER  -