TY  - JOUR 
T1  - Zr(HSO4)4 as an efficient catalyst for the preparation of 10-aryl-6,8-dimethyl-6,10dihydro-5-oxa-6,8-diazaanthra[2,3-d][1,3]dioxole-7,9-diones under solvent-free conditions
JO  - Journal of the Brazilian Chemical Society
A1  - Zhang, Jiangli
A1  - Li, Wei Lin
A1  - Wu, Li Qiang
SN  - 0103-5053
UL  - 10.1590/S0103-50532011000700006
VL  - 22 
Y1  - 2011
PB  - Brasil 
ER  -