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InCl 3 ·3H 2 O was found to be a mild and effective catalyst for the efficient, one-pot, three component synthesis of 2,4,5-trisubstituted imidazoles at room temperature. Moreover, the utility of this protocol was further explored conveniently for the one-pot, four component synthesis of 1,2,4,5-tetrasubstituted imidazoles in high yields.
The regio- and diastereoselective synthesis of pyrrolidine derivatives through 1,3-dipolar cycloaddition of an azomethine ylide and dipolarophile mediated by KF/Al 2 O 3 , a versatile solid supported reagent, is reported. KF/Al 2 O 3 is sufficiently basic such that it can deprotonate α-imino esters to generate azomethine ylides and it also functions as a solid supported...
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