Variable temperature NMR experiments of diastereomeric 1,3-dihydroxy-1,3- bis[(2-dimethylaminomethyl)phenyl]-1,3-divinyldisiloxanes, meso-1 and rac-1 having intramolecular hydrogen bondings were carried out. As temperature increased, the 1H NMRs of hydroxy groups of 1 resulted in a low frequency and their 29Si NMRs were very slightly shifted to a low frequency. Interestingly, the 1H NMR of two benzylic protons was split more widely as temperature increased.
Bibliographical noteFunding Information:
This work was supported by Maeji Academic Institute Research Fund, 2003. We thank Prof. Robert West (University of Wisconsin, Madison) for his helpful comments on this work.
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry