Butyl Peroxy acetate

Synonyms tert-butyl peracetate peroxy-acetic acid terr-butyl ester Lupersol 70 

Mild skin and eye irritant. Its toxicity is low, both via inhalation and ingestion routes. 

The pure compound is highly reactive and oxidizing, and sensitive to heat and shock. 

A 75% solution in benzene or mineral spirits is the maximum assay that is sold commercially. Its benzene solution at this concentration is reactive, oxidizing, and flammable. The flash point varies depending on the solvent the autoignition temperature not reported the self-accelerating decomposition temperature is 93°C (199.4°F). 

Store in a cool and well-ventilated place isolated from other chemicals protect from physical damage. It is shipped in glass and earthenware containers not exceeding 7 lb, inside a wooden or fiberboard box. 

---

The ethylene-vinyl acetate rubbers have been available for some years (Levapren 450—Bayer) and contain about 45% vinyl acetate units. They are vulcanized by peroxides such as dicumyl peroxide, t-butyl cumyl peroxide, di-t-butyl peroxide and 2,5-bis(t-butyl peroxy)-2,5-dimethyl hexane. 

Cyclic allyl peroxides are converted stereoselectively into the dihydroxypropyl peroxides using a modified Sharpless procedure with osmium tetroxide and /-butyl peroxide in the presence of benzyltrimethylammonium acetate [23]. Yields are generally good with exclusive an/f-addition with respect to the peroxy group, although both the steroselectivity and yield (<40%) are poor for the oxidation of 2,3-dihydrofuran-3-yl peroxide and 2,3-dihydro-4//-pyran-4-yl peroxide. 

Copper-catalyzed687-689 or photochemical690 reaction of alkenes with peroxy-esters, usually with tert-butyl peracetate (or rm-BuOOH in acetic acid), may be used to carry out acyloxylation or the synthesis of the corresponding allylic esters in good yields. In contrast to the oxidation with Se02, preferential formation without rearrangement of the 3-substituted esters takes place from terminal alkenes 691... 

Materials. VEC was prepared by the catalyzed addition of CO2 to 3,4-epoxy-l-butene using conditions typical of that used industrially [77], then purified by vacuum distillation. Other raw materials were used as received without any additional purification. Mixed xylenes, vinyl acetate (VA), butyl acrylate (BA), butyl methacrylate (BMA), methyl methacrylate (MMA), styrene (St), and t-butyl hydroperoxide were obtained from Aldrich Chemical Company. Lupersol 575 (t-amyl peroxy (2-ethylhexanoate)) was supplied by Elf Atochem. Vazo 67 (2,2 -azobis(2-methylbutyronitrile)) was obtained from DuPont Chemical Company. Vinyl pivalate (NE05), vinyl 2-ethylhexanoate (V2EH), Tergitol NP-40 (non-ionic surfactant) and QP-300 (hydroxy ethyl cellulose) were obtained from Union Carbide Coq)oration. Aerosol OT-75 (surfactant) was obtained from Cytec. Sodium formaldehyde sulfoxylate was obtained from Henkel Corporation. Ethyl 3-ethoxy propionate (EEP), propylene glycol monomethyl ether (PM) and PM acetate (PM Ac) are Eastman Chemical Company products. 

Di-tert-butyl peroxide does not react (48). Hydroperoxide can be distinguished from other types of peroxides by a positive reaction with lead tetraacetate, which is accompanied by the evolution of oxygen. It is carried out with a solution of the tested substance in glacial acetic acid by addition of a grain of lead tetraacetate. A list of reactions of peroxy compounds is given in Table 11. 

---