1428946-36-4

Upstream product

• 1428946-40-0 5'-(tert-butyl)-4,4''-dimethoxy-1,1':3',1''-terphenyl 
• 2398-37-0 3-methoxyphenyl bromide 
• 10365-98-7 3-methoxyphenylboronic acid 
• 129316-09-2 1,3-dibromo-5-t-butylbenzene 
• 10546-67-5 2,6-dibromo-4-(tert-butyl)aniline 
• 769-92-6 4-tert-Butylaniline 
• 108-77-0 1,3,5-trichloro-2,4,6-triazine 
• 1428946-28-4 5'-tert-butyl-(1,1':3',1-terphenyl)-3,3-diol 

Relevant academic research and scientific papers

M-Terphenyl-3,3″-dioxo-derived oxacalixaromatics: Synthesis, structure, and solvent encapsulation in the solid state

The synthesis of oxacalix[2]terphenylene[2]aromatics with enlarged macrocyclic holes by cyclooligomerization reaction of 5′-tert-butyl-(1, 1′:3′,1″-terphenyl)-3,3″-diol 1 with electron-deficient dihalogenated benzene and azaheterocycles is described. The structures of the macrocycles were characterized by NMR, HRMS spectroscopic and X-ray diffraction techniques. Single crystal X-ray analysis revealed that the terphenyl-3, 3″-dioxo unit incorporated in the oxacalix[4]aromatics scaffold can adopt all three possible conformations (I, II, III). The cis-conformational terphenyl-3,3″-dioxo (I and II) derived oxacalix[4]aromatics were found to adopt both chair and boat conformations, resulted in creation of molecular cavities capable of hosting solvent molecules of chloroform. The trans-conformational terphenyl-3,3″-dioxo (III) derived oxacalix[4]aromatics, however, adopt a twisted chair conformation with a narrow void space incapable of hosting any guest molecules.