Title of article :
Interconversion between syn and anti Conformations of 1,3-Bis(O-cyanomethyl)-p-tertbutylthiacalix[4]arene
Author/Authors :
Kabuto، Chizuko نويسنده , , Miyano، Sotaro نويسنده , , Bhalla، Vandana نويسنده , , Kumar، Manoj نويسنده , , Hattori، Tetsutaro نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
1,3-Bis(O-cyanomethyl)-p-tert-butylthiacalix[4]arene (5) has been found to interconvert between syn and anti conformations in solution. The equilibrium shifts toward the anti form with increasing solvent polarity. In the solid state, it adopts a pinched cone conformation with the syn arrangement of the cyanomethyl groups. Reduction of the equilibrium mixture of 5 with LiAlH4 gives only anti stereoisomer of 1,3-bis(O-aminoethyl)-p-tert-butylthiacalix[4]arene.
Keywords :
Application-production research , Genetic-fuzzy system , Surface finish , grinding , Power requirement , prediction
Journal title :
CHEMISTRY LETTERS
Journal title :
CHEMISTRY LETTERS