An Efficient Protocol for the Green and Solvent-Free Synthesis of Azine Derivatives at Room Temperature Using BiCl₃-Loaded Montmorillonite K10 as a New Recyclable Heterogeneous Catalyst

Table 2

Synthesis of azine derivatives using Bi-K10 under solvent-free conditions.

Entry	Hydrazone	Ketones/aldehydes	Azines	Grinding time min	Yield^a (%)
1				1.5	98.0
2				1.5	95.0
3				1.5	94.0
4				1.5	94.0
5				1.5	93.0
6				1.0	98.0
7				1.0	96.0
8				1.0	96.0
9				1.0	96.0
10				1.0	96.0
11				1.0	96.0
12				1.0	92.0
13				1.0	95.0
14				1.0	95.0
15				MW/6 min	98.0

^aYields with respect to hydrazone.