Rj. Bushby et al., AN UNEXPECTED MECHANISM OF ACTION OF THE STYRENE POLYMERIZATION RETARDER 2,4-DINITRO-6-SEC-BUTYLPHENOL, Polymer, 39(22), 1998, pp. 5567-5571
The reaction of 'DNBP' (2,4-dinitro-6-sec-butylphenol) with toluene, e
thylbenzene or styrene and tert-butylperoxide at 110 degrees C leads t
o 7-sec-butyl-5-nitro-2-phenylbenzoxazole This benzoxazole was also de
tected in the residues of an industrial styrene fractionation still in
which DNBP was routinely used as the polymerisation retarder. The for
mation of this product from either ethyl benzene or from styrene invol
ves a carbon-carbon bond cleavage step. (C) 1998 Elsevier Science Ltd.
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