Table 4.

A comparison of the previously reported procedures for the synthesis of chemicals 5a, 6f, and 8a.

Entry	Product	Catalyst	Catalyst loading	Solvent	Temp. (°C)	Time (min)	Yield (%)	Ref.
1	5a	Cu2(NH2-BDC)2(DABCO)	40 mg	Solvent-free	r.t	5	96	This work
2	5a	Cu2(BDC)2(DABCO)	40 mg	Solvent-free	r.t	20	78	This work
3	5a	NH4Al(SO4)2.12H2O (Alum)	20 mg	EtOH	80	120	94	[62]
4	5a	PhB(OH)2	5 mol%	H2O/EtOH	Reflux	30	84	[63]
5	5a	SiO2-Pr-SO3H	30 mg	H2O/EtOH	Reflux	15	97	[17]
6	5a	KF/Al2O3	250 mg	DMF	r.t	60–180	48	[60]
7	5a	MPA-MDAZYb	140 mg	EtOH	80	70	90	[64]
8	5a	ChCl/Urea DESc	1 mL	ChCl/Urea DESc	80	60–240	92	[65]
9	5a	Amberlyst A21	30 mg	EtOH	r.t	60	84	[66]
10	6f	Sodium Alginate	10 mol%	EtOH	Reflux	52	93	[67]
11	6f	MPA-MDAZYb	140 mg	EtOH	80	40	75	[64]
12	6f	Lipase from Porcine pancreas (PPL)	30 mg	H2O/EtOH	35	60	96	[68]
13	8a	ChCl/Urea DESc	1 mL	ChCl/Urea DESc	80	210	82	[65]
14	8a	Sodium Alginate	10 mol%	EtOH	Reflux	150	90	[67]
15	8a	nanocrystalline ZnO	10 mol%	H2O/EtOH	r.t	150	96	[61]

^a Entries 1–8: Obtained outcomes for the synthesis of molecule5a, Entries 9–11: Obtained outcomes for the synthesis of molecule6f, Entries 12–14: Obtained findings for 8a compound synthesis.

^b12-Molybdophosphoric acid (MPA), modified dealuminated zeolite Y (MDAZY).

^cDeep eutectic solvent (DES).