2677-32-9Relevant academic research and scientific papers
Solvent-free synthesis of trisphenols as starting precursors for the synthesis of calix[4]arenes using sulfonated multi-walled carbon nanotubes
Fareghi-Alamdari, Reza,Golestanzadeh, Mohsen,Zekri, Negar
, p. 3400 - 3412 (2016/05/09)
The condensation of phenol derivatives (12 substrates) with 2,6-bis(hydroxymethyl)phenols (BMP) (6 examples) is reported using sulfonated multi-walled carbon nanotubes (SO3H@MWCNTs) under solvent-free conditions as starting precursors for the synthesis of macrocyclic molecules of calix[4]arenes. The new protocol provides a series of trisphenol derivatives (21 examples) in high yields (up to 94%) and relatively short reaction times (15-120 min). Also, direct synthesis of calix[4]arenes from different trisphenols by use of the catalyst was reported (5 examples). Furthermore, the synthesized calix[4]arene was obtained using a one-pot method from simple and easily available starting materials such as p-cresol for the synthesis of 5,11,17,23-tetramethylcalix[4]arene-25,26,27,28-tetraol. Also, in this process SO3H@MWCNTs can be reused for seven runs with almost consistent efficiency and can be recovered by easy filtration.
The Synthesis of Polyfunctional Aromatic Ring Systems. Structural Analogues of Phloroglucides, Aranciamycin, Cryptosporin and Terramycin
Hakimelahi, Gholam Hosein,Moshfegh, Ali Akbar
, p. 599 - 609 (2007/10/02)
The synthesis of the title compounds is described.Some of the compounds prepared were found to be active against a number of pathogenic microorganisms in vitro.
