Table 1.

Yields and UV-Vis absorption bands of 3, 4 and their metalloporphyrins 3a–3e, 4a–4e.

Compounds	M	Yields %	λmax, nm (CHCl3)
			Soret band	Q bands
3	2H	10	419	516	552	590	646
3a	Zn	90	424		554	594
3b	Cu	90	416		539
3c	Co	90	411		530
3d	Fe	80	417
4	2H	15	420	517	553	591	647
4a	Zn	90	425		554	596
4b	Cu	90	417		540
4c	Co	90	412		530
4d	Fe	80	419
cardanol-based A4-porphyrin	2H	14 [16]	420	518	556	593	649