Journal of Organic Chemistry p. 3372 - 3376 (1991)
Update date:2022-08-02
Topics:
Jaime, Carlos
Mendoza, Javier de
Prados, Pilar
Nieto, Pedro M.
Sanchez, Concha
The conformations of calix<4>arenes can be deduced from the 13C NMR chemical shift of the methylene groups connecting each pair of aromatic rings.Inspection of 24 cases revealed that when the phenol rings beside each methylene are in a syn orientation (i.
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