Title of article :
Unique catalytic effect of a cyclodextrin host on photodimerization of coumarin in nonpolar solvents
Author/Authors :
Asahara، نويسنده , , Haruyasu and Iwamoto، نويسنده , , Takuya and Kida، نويسنده , , Toshiyuki and Akashi، نويسنده , , Mitsuru، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2013
Abstract :
Heptakis(6-O-tert-butyldimethylsilyl)-β-cyclodextrin (TBDMS-β-CD) formed inclusion complexes with coumarin in benzene and cyclohexane. The inclusion mode of coumarin within the TBDMS-β-CD cavity was different between these solvents. Photodimerization of coumarin in the solvents was remarkably accelerated by the inclusion within the TBDMS-β-CD cavity. In particular, the largest rate increase was observed when 1.0 equiv of TBDMS-β-CD was added to coumarin.
Keywords :
cyclodextrin , Photodimerization , Supramolecular catalyst , Nonpolar solvent , Coumarin
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
