R-Butyl perbenzoate

Phenyl isocyanate, conversion to di-phenylcarbodiimide, 43,31 Phenyl isocyanide, 41,103 Phenyllithium, reaction with allyltri-phenyltin, 41, 30 standardization of, 41, 32 Phenylmagnesium bromide, 41, 91 reaction with ( r(-butyl perbenzoate, 41,91... 

B. Electron transfer reaction of r-butyl perbenzoates with dimethyl sulfides. 

Fig. 7.1-4, left, indicates the pressure and temperature values recorded at the solubility limits for r-butyl perbenzoate in Ao-dodecane, which is a liquid at ambient pressure and... 

Oxidation of C—bonds by copper ion catalyzed reaction with an organic peroxy ester (the Kha-rasch-Sosnovsky reaction) was at one time very popular for allylic oxidation and has been thoroughly reviewed. The reaction is usually carried out by dropwise addition of peroxy ester (conunonly r-butyl peracetate or r-butyl perbenzoate) to a stirred mixture of substrate and copper salt (0.1 mol % commonly copper(I) chloride or bromide) in an inert solvent at mildly elevated temperature (60-120 C). The mechanism involves three steps (i) generation of an alkoxy radical (ii) hyttogen atom abstractitm and (iii) radical oxidation and reaction with carboxylate anion (Scheme 11). 

The substitution of aluminum by oxygen can be effected by various peroxide derivatives, such as di-r-butyl peroxide, benzoyl peroxide and r-butyl perbenzoate. The main reaction is accompanied by telltale free-radical side reactions, such as the formation of RR from R3AI, which become major pathways with aryl and vinyl compounds. Oxidation of alkenyl derivative (56) with r-butyl perbenzoate yields 45% of a mixture of cis and trans ethers (57 equation 44). As of yet there is no generally applicable, highly efficient method for oxidizing vinylaluminum compounds. 

Radicals Azobisisobutyronitrile. a,T-Bis(diphenylene)-d-phenylallyL r-Butyl perbenzoate. 7-Butyrolactone. Dibenzoyl peroxide. Di-r-butyl nitroxidc. Di-r-butyl peroxide. Diphenyl-picrylhydrazyl. Galvinoxyl. Hydrogen peroxide-iron salts. Lead dioxide. N-Phenyl-N -benzoyldiimide. Potassium nitrosodisulfonate. Thiolacetic acid. Trichloromethanesulfonyl chloride. 

In the presence of a cuprous halide, r-butyl perbenzoate reacts at 67-90° with an aliphatic or cyclic ether, for example tetrahydrofurane, to give initially the unstable a-benzoyloxy derivative (1). This ester can be isolated after a reaction period of 4-6 hrs. and converted by mild heat treatment into 2,3-dihydrofurane, which is... 

Oxidation, allylic r-Butyl perbenzoate. f-Butyl chromate. Lead tetraacetate-N-Bromosuc-cinimide. Mercuric acetate. Nickel peroxide. Selenium dioxide. i-amines Cr08-Pyridine. 

Copolymerization of N-vinylpyrrolidone with vinyl chloride [59]. Copolymerization of N-vinylpyrrolidone with vinyl acetate [59]. Copolymerization of A -vinylpyrrolidone with ethylene [102]. Copolymerization of A -vinylpyrrolidone with acrylates, methacrylates, or mixed acrylic monomers, initiated by / r/-butyl perbenzoate [103]. 

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