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 5

One-pot synthesis of different xanthene derivatives catalyzed by H-Zeolite A.

Entry	Aldehydes	Product	Time	Yield (%)	m.p. (°C)	Ref.
1			17	96	182-183	183 [31, 38]
2			15	97	287-288	288 [31, 38]
3			25	95	254-255	255 [31]
4			35	92	310-311	311 [31]
5			35	92	211-212	211 [39]
6			32	90	138–140	140 [40]

m.p.: melting point.