Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthene Derivatives Using H-Zeolite A as an Efficient and Reusable Catalyst under Solvent-Free Condition

Table 1

Effect of different solvents on the reaction between 4-chlorobenzaldehyde and 2-naphthol.

Entry	Solvent	Catalyst (g)	Time	Yield (%)
1	Ethanol	0.05	50 min	67
2	Methanol	0.05	50 min	73
3	CHCl3	0.05	50 min	64
4	Solvent-free	0.05	15 min	95