Butylbenzoic acid

The reaction of carboxylic acids with CDI is surprisingly insensitive to steric hindrance. For example, from 2,4,6-tri-terf-butylbenzoic acid and CDI in refluxing tetra-hydrofuran the sterically very crowded AT-(2,4,6-tri-ter butylbenzoyl)-imidazole was obtained in 80% yield.[13]... 

Noteworthy in this connection is van Bekkum s report (107) that the hydrogenation of 2-butylbenzoic acid over a rhodium catalyst yields ci -2-final stages, after most of the aromatic compound has disappeared, is the trans isomer formed, obviously via the hydrogenation of the tetrahydro derivative. 

The Effect of p-t-Butylbenzoic Acid on Terpolymer Sensitivity TABLE III... 

Scheme 29, in the coupling of a tributylborane to yield p-butylbenzoic acid upon cleavage. 

Miscellaneous Derivatives. Other derivatives of toluene, none of which is estimated to consume more than ca 3000 t (106 gal) of toluene annually, are mono- and dinitrotoluene hydrogenated to amines benzotnchloride and chlorotoluene, both used as dye intermediates / rf-butylbenzoic acid from /m-butyltoluene, used as a resin modifier, dodecyltoluene converted to a benzyl quaternary ammonium salt for use as a germidde and biphenyl, obtained as by-product during demelhylation, used in specialty chemicals. Toluene is also used as a denaturant in specially denatured alcohol (SDA) formulas 2-B and 12-A. 

Bromoacetic acid (0) 3- Bromobenzoic acid (0) 4- Bromobenzoic acid (0) Bromopropynoic acid (0) 3- te/t-Butylbenzoic acid (0) 4- te/t-Butylbenzoic acid (0) 2-Butynoic acid (0) Butyric acid (0) 4.806 4.804 1.786 2.618 4.803... 

A-10. An unknown compound, C12H18 reacts with sodium dichromate (Na2Cr207) in warm aqueous sulfuric acid to give p-ferf-butylbenzoic acid. What is the structure of the unknown ... 

The assembly of 4-ferf-butylbenzoic acid and cyclam (A, Figure 2) [54] has a planar arrangement of the macrocycle s N4 donor set with a tram disposition of the carboxylates very similar to that observed in the structure of the nickel complex, [Ni(cyclam)(benzoate)2], (B, Figure 2).[55] Formation of the nickel complex from the assembly and extraction of the nickel ion can then be represented by the pH-swing equilibrium... 

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