Table 5. SMA catalysed multicomponent synthesis of 2a–j^a.

Entry	R	X, Y	Timeb (min)	Product	Yieldc (%)	M.P. (°C) (observed)	M.P. (°C) (reported)
1	4-ClC6H4	H, H	10	2a	85	221–225	222–224 (ref. 49)
2	4-NO2C6H4	H, H	15	2b	86	234–236	236–238 (ref. 49)
3	–C6H5	H, H	10	2c	92	238–241	240–242 (ref. 49)
4	3-MeC6H4	H, H	14	2d	89	225–227	223–225 (ref. 49)
5	4-OMeC6H4	H, H	15	2e	89	191–193	190–192 (ref. 49)
6	4-OHC6H4	CH3, CH3	10	2f	88	214–218	215–217 (ref. 49)
7	–C6H5	CH3, CH3	15	2g	93	235–237	234–236 (ref. 49)
8	4-ClC6H4	CH3, CH3	20	2h	84	237–240	236–238 (ref. 49)
9	4-NO2C6H4	CH3, CH3	15	2i	87	180–183	182–184 (ref. 49)
10	4-CNC6H4	CH3, CH3	15	2j	88	228–230	230–232 (ref. 50)

^aReaction condition: aldehyde (1 mmol), malononitrile (1 mmol), dimedone (1 mmol) and SMA (1 mol%).

^bReaction progress monitored by TLC.

^cIsolated yield.