Bonds cleavage during reaction

Toutchkine, A. and Clennan, E.L. (2000). A new mechanism for oxidative C-S bond cleavage during reactions of singlet oxygen with organic sulfides electronically dictated reaction selectivity in the persulfoxide intermediate. J. Am. Chem. Soc. 122, 1834-1835... 

Typical experimental results are illustrated in Figure 4.4 for carbon-bromine bond cleavage during the homogeneous electron transfer reaction of 2-bromopyridine [29], The graph of log(k,i) vs. Ed° shows two linear regions of differing slope. This results from the existence of an extremely short-lived substrate... 

Figure 6.48. Mechanistic proposals for the P450-catalyzed C-C bond cleavage during the biosynthesis of aflatoxin Bj. One possibility involves a Baeyer-Villiger-like reaction of the ferric peroxo species with the keto tautomer of the phenolic substrate while the other proceeds via the epoxide intermediate typical of ferryl catalyzed aromatic oxidations.

The reactions of Fe, Ru, Os, and Rh complexes containing PMc3 may lead to the C —H bond cleavage during its oxidative addition to the metaP " ... 

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