Tetrahedron Letters p. 1325 - 1328 (1997)
Update date:2022-08-11
Topics:
Sercheli, Ricardo
Ferreira, Alfredo L. B.
Guerreiro, Mario C.
Vargas, Rogerio M.
Sheldon, Roger A.
Schuchardt, Ulf
N,N',N''-Tricyclohexylguanidine was encapsulated in hydrophobic zeolite Y by reacting N,N'-dicyclohexylcarbodiimide with cyclohexylamine within the supercage. The encapsulated guanidine catalyzes the addition reaction of acetone to benzaldehyde forming 4-phenyl-4-hydroxybutan-2-one as the principal product, as opposed to the homogeneous system which produces 4-phenyl-3-buten-2-one via condensation reaction.
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