Efficient Synthesis and Characterization of Some Novel Nitro-Schiff Bases and Their Complexes of Nickel(II) and Copper(II)

Table 1

The results of the reaction for preparation of nitro-Schiff bases.

Entry	𝑅 (Scheme 1)	Ligand	Time (min)	Yield^a (%)	M.p (°C)
1	(CH2)2	L1	40	91.0	272–274
2	(CH2)3	L2	40	90.0	210–213
3	(CH2)4	L3	45	88.5	173–176
4	(CH2)7	L4	55	88.0	150–152
5	(CH2)8	L5	55	85.0	161–164
6		L6	45	92.0	261–264
7		L7	55	92.0	193–195
8		L8	60	94.0	204–206

^aIsolated yields.