Benzene addition deuteriation

Methyl cation affinities of benzene and some substituted benzenes have been calculated. These follow a simple additivity rule and the value for benzene shows good agreement with the experimental estimate. Conclusive evidence is presented that these values are linearly related to the corresponding proton affinities. The competition between deuteriation and alkylation in the reaction of radiolytically formed perdeuterio ethyl cations with iV-methylpyrrole and with thiophene has been studied. Deuteriation, the Brpnsted acid pathway, predominates and intramolecular selectivities have been determined for each reaction. ... 

The molecular weight of PPP obtained by the polymerization of deuteriated benzene (C Dg) was lower than that of PPP prepared from normal benzene (CgHg) [3,15]. This last result was interpreted as an additional proof of the stair-step mechanism, which implies that polyphenylene is obtained from (12) which rearranges into PPP by successive steps corresponding either to proton loss (13) or to a dealkylation reaction (14), according to the pathway in Scheme 6.5. 

XOMs No filtration or preservation but addition of deuteriated benzene (Benzene D5) and 1 bromo-3 chloropropane as internal standards for analysis of volatile compounds. Extraction of samples with pentane and addition of acenaphthene as internal standard for analysis of semi- to non-volatile compounds GC-MS... 

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