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Hindered Rotation at the Triple Bond

✍ Scribed by Philippe Koo Tze Mew; Fritz Vögtle


Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
322 KB
Volume
18
Category
Article
ISSN
0044-8249

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## Abstract The barriers to internal rotation about the CN bond in several thiopiperidides have been determined by the NMR technique. It was found that the barrier height (Δ__G__^‡^) increases in the series cinnamoylthiopiperididem‐and __p__‐substituted cinnamoylthiopiperidides the barriers were s