Organic Chemistry International

Research Article

Green Chemistry: New Synthesis of Substituted Chromenes and Benzochromenes via Three-Component Reaction Utilizing Rochelle Salt as Novel Green Catalyst

Table 2

Elemental analyses of the newly synthesized compounds 6–8.
CompoundMol. formula/M.Wt.Elemental analysis
 C%H%N%
6aC18H16N2O4 
(324.35)		Calc.
Found		66.66
66.41		4.97
5.12		8.64
8.34
6bC18H16N2O4 
(324.35)		Calc.
Found		66.66
67.01		4.97
5.13		8.64
9.01
6cC23H18N2O3 
(370.40)		Calc.
Found		74.58
76.86		4.90
4.75		7.56
7.15
7aC22H18N2O3 
(358.39)		Calc.
Found		73.73
74.11		5.06
5.20		7.82
8.07
7bC22H18N2O3 
(358.39)		Calc.
Found		73.73
74.02		5.06
5.38		7.82
7.58
8aC22H18N2O3 
(358.39)		Calc.
Found		73.73
74.11		5.06
5.74		7.82
8.21
8bC22H18N2O3 
(358.39)		Calc.
Found		73.73
73.63		5.06
4.83		7.82
8.19
8cC22H18N2O3 
(358.39)		Calc.
Found		73.73
73.52		5.06
5.24		7.82
7.63
8dC23H20N2O4 
(388.42)		Calc.
Found		71.12
71.34		5.19
5.40		7.21
7.50