Title of article
Montmorillonite K-10 as a mild acid for the Nicholas reaction
Author/Authors
Crisَstomo، نويسنده , , Fernando R. Pinacho and Carrillo، نويسنده , , Romen and Martيn، نويسنده , , Tomلs and Martيn، نويسنده , , Vيctor S.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2005
Pages
4
From page
2829
To page
2832
Abstract
The use of Montmorillonite K-10 as a convenient acid component in the Nicholas reaction is described. Its use permits functional selectivity, inter- and intramolecular reactions and convenience in the experimental conditions. A four-step one-pot [Co2(CO)6–acetylene complex formation, THP-removal, cyclization and complex cleavage] process permits the direct synthesis of 2-ethynyl-tetrahydrofuran from 6-(tetrahydro-2H-pyran-2-yloxy)hex-1-yn-3-ol.
Keywords
Cyclic ether , Cobalt , Nicholas reaction
Journal title
Tetrahedron Letters
Serial Year
2005
Journal title
Tetrahedron Letters
Record number
1845425
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