78077-40-4

Upstream product

• 2198-66-5 2-bromo-4-tert-butylphenol 
• 98-54-4 para-tert-butylphenol 
• 2599-63-5 2-bromo-4-tert-butyl-6-(hydroxymethyl)phenol 
• 134747-54-9 2-bromo-6-bromomethyl-4-t-butylphenol 

Downstream Products

• 78077-41-5 2-(3-bromo-5-tert-butylsalicyl)-5-tert-butyl-2-hydroxybenzyl alcohol 
• 134747-57-2 2-(3-bromo-5-t-butyl-2-hydroxybenzyl)-6-bromomethyl-4-t-butylphenol 
• 157432-87-6 5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxycalix-4-arene 
• 68803-63-4 3-<3-<3-(5-tert-butylsalicyl)-5-tert-butylsalicyl>-5-tert-butylsalicyl>-5-tert-butyl-2-hydroxybenzyl alcohol 
• 78077-42-6 2-<3-(3-bromo-5-tert-butylsalicyl)-5-tert-butylsalicyl>-4-tert-butylphenol 
• 78077-43-7 3-<3-(3-bromo-5-tert-butylsalicyl)-5-tert-butylsalicyl>-5-tert-butyl-2-hydroxybenzyl alcohol 
• 78077-44-8 2-<3-<3-(3-bromo-5-tert-butylsalicyl)-5-tert-butylsalicyl>-5-tert-butylsalicyl>-4-tert-butylphenol 
• 78092-55-4 3-<3-<3-(3-bromo-5-tert-butylsalicyl)-5-tert-butylsalicyl>-5-tert-butylsalicyl>-5-tert-butyl-2-hydroxybenzyl alcohol 
• 134747-59-4 2-(3-bromo-5-t-butyl-2-hydroxybenzyl)-4-t-butyl-6-(2-hydroxy-5-methylbenzyl)-phenol 
• 149790-66-9 2-bromo-4-t-butyl-6-<5-t-butyl-3-<5-t-butyl-3-(5-t-butylsalicyloyl)salicyl>salicyloyl>phenol 
• 149826-77-7 2-bromo-4-t-butyl-6-<5-t-butyl-3-<5-t-butyl-3-(5-t-butylsalicyl)salicyl>salicyloyl>phenol 
• 149790-67-0 2-bromo-4-t-butyl-6-<5-t-butyl-3-(5-t-butylsalicyl)salicyloyl>phenol 
• 149790-56-7 Acetic acid 2-(2-acetoxy-5-tert-butyl-benzoyl)-6-bromo-4-tert-butyl-phenyl ester 
• 149790-63-6 2-bromo-4-t-butyl-6-(5-t-butyl-3-chloromethylsalicyloyl)phenol 

Relevant academic research and scientific papers

ASYMMETRICALLY SUBSTITUTED CALIXARENES; A TWO-DIMENSIONAL 1H NMR STUDY OF A TETRAESTER DERIVATIVE IN THE CONE-CONFORMATION

Several new chiral calixarenes with three or four different substituents in the p-position have been prepared by fragment condensation.Standard derivation procedures always led to the formation of mixtures of various conformational isomeres from which the derivative in the cone-conformation could be isolated only by preparative HPLC.For a tetraester derivative it was shown by two-dimensional 1H NMR spectroscopy, that due to the different substituents the cone-conformation is strongly distorted.The sodium complex of this tetraester, however, assumes a regular cone-conformation again.