A comparison of the atom economy and atomic efficiency of the present methodology with other methods for the synthesis of 5-substituted-1H-tetrazole derivatives.

Entry	Equation	Desired product	Time (h)	Yielda (%)	AE (%)	AEf
1	1		8	78	71.58	51.24
	2		7	91		65.13
	3		4	92		65.85
	4		1 h 30 min	96		68.71
	5		15 min	97		69.43
2	1		9	88	76.72	67.51
	2		8	92		70.58
	3		3	96		73.65
	4		1 h 20 min	96		73.65
	5		15 min	97		74.41
3	1		—	—	75.23	—
	2		8	90		67.07
	3		5	90		67.07
	4		2 h 30 min	87		65.45
	5		10 min	98		73.72

^aIsolated yield.