Synthesis and properties of 11-(3,5-Di-tert-butyl-2-hydroxyphenylcarbamoyl)undecanoic acid, a new amphiphilic antioxidant

One-pot, three-component, iron-catalyzed synthesis of benzimidazolesviadomino C–N bond formation

“…It now reacts with ammonium acetate to form the imine intermediate ( III ). 42,43 At the same time, aldehyde can react with an excess of ammonium acetate to form a Schiff base IV . 44–48 Schiff base IV is able to react with intermediate ( III ) by intermolecular cyclization to form intermediate V .…”

Intramolecular cyclization–decyclization of new sterically hindered diiminophenol. Synthesis and coordination abilities

“…General 2-Amino-4,6-di-tert-butylphenol was prepared according to a previously described procedures. 23 Solvents were puried by standard methods. 24 All synthesis have been conducted in evacuated ampoules.…”

5,7-Di-tert-butyl-2-(2-pyridyl)benzo[d]oxazole

“…Crystals of (I) were prepared by a recently described method (Lodyato et al, 2003, Vinšová et al, 2006. Purification was by column chromatography on silica gel using ethyl acetate-petroleum ether (1:9 v/v) as eluent.…”