87586-50-3

Upstream product

• 22385-96-2 5,5'-di-tert-butyl-2,2'-dihydroxybiphenyl 
• 133373-15-6 5,5'-di-(1,1-dimethyl-ethyl)-2,2'-dimethoxy-1,1'-biphenyl 
• 4877-93-4 2,2'-Dimethoxybiphenyl 
• 1806-29-7 2,2'-dihydroxybiphenyl 

Relevant academic research and scientific papers

Catalytic Activity of Copper(II)-Ethylenediamine Complexes in Autoxidation of Phenols

Studies of the autoxidation of tert-butylphenols 1-4 with molecular oxygen in the presence of Cu(II) complexes of N-substituted ethylenediamines indicate that the most catalytically active complexes are sterically crowded around the nitrogen atoms.The principal primary oxidation products formed in the presence of these complexes are substituted biphenyls 5, 7, 10, and 14, the first three of which are converted into secondary products on prolonged oxidation.Only in the oxidation of 2 is a diphenyl ether (9) formed, in quantities that increase little after the first 5 min of oxidation.

Synthesis and optical resolution of a double helicate consisting of ortho-linked hexaphenol strands bridged by spiroborates

(Figure Presented) Double Twist: The first spiroborate-based helicate was synthesized and shown to be stable in the solid state as well as in solution. The double-stranded structure (see picture) was characterized by 1H NMR spectroscopy, ESI MS