Calixarenes with exo-hydroxy groups: Synthesis, crystal and molecular structure of ortho-tert-butylphenol-based calix[4]-, calix[6]- and calix[8]arenes

Add time:07/23/2019    Source:sciencedirect.com

Ortho-tert-butylcalixarenes 3, 4 and 5 with exo-hydroxy groups were synthesised by tin tetrachloride-promoted condensation of 2,2′-dihydroxy-3,3′-di-tert-butyldiphenylmethane 6 with formaldehyde. While 1H NMR analysis of compounds 3, 4 and 5 revealed a considerable annular flexibility in CDCl3 solution, their X-ray single crystal analysis showed the presence of a strong intramolecular hydrogen bonds between the proximal OH groups.

We also recommend Trading Suppliers and Manufacturers of 4,4'-DI-TERT-BUTYLDIPHENYLMETHANE (cas 19099-48-0). Pls Click Website Link as below: cas 19099-48-0 suppliers

Prev:Structure–activity studies in the development of a hydrazone based inhibitor of adipose-triglyceride lipase (ATGL)
Next:Structural and electronic properties of tris(4-trifluoromethyltetrafluorophenyl)phosphine)