Synthesis and In Vitro Antioxidant Evaluation of New 1,3,5-Tri-{2-methoxy-4-[(4,5-dihydro-1𝐻-1,2,4-triazol-5-on-4-yl)-azomethine]-phenoxycarbonyl}-Benzene Derivatives

Table 1

The HNP and the corresponding p𝐾_a values of compounds 4a-g in isopropyl alcohol, tert-butyl alcohol, DMF, and acetone.

Comp.	Isopropyl alcohol		tert-Butyl alcohol		DMF		Acetone
	HNP (mV)	p𝐾a	HNP (mV)	p𝐾a	HNP (mV)	p𝐾a	HNP (mV)	p𝐾a
4a	—	—	−142	10.00	—	—	−214	10.07
4b	−377	14.80	−343	14.17	−336	14.06	−146	9.81
4c	−172	9.73	—	—	−400	15.20	—	—
4d	−253	11.47	—	—	−364	14.67	—	—
4e	−432	16.08	−195	10.45	−398	15.34	—	—
4f	−244	11.75	—	—	−467	15.66	−609	—
4g	—	—	—	—	−730	—	−160	9.87