This free-radical species reacts with a chlorine molecule to give the product and a chlorine atom, which continues the chain reaction for many additional steps.
The second chemical reaction C2 (dehydration), which is much slower (rate constant kd < 1.6 × 10−3s−1), involves the loss of a H2O molecule to give 4-formylpyridine, which is itself easier to reduce than isonicotinic acid.
FT-IR experiments were also conducted at 100 K and 293 K using CO as probe molecule to give further insights on the Cs and reduced Pt species, respectively.
To explain the synthesis of 1,3,4-thiadiazole 6a g, we assumed that the reaction started with S-alkylation to afford the non-isolable intermediate 5 followed by intramolecular cyclization and elimination of aniline molecule to give the respective thiadiazole derivatives 6a g (Scheme 1).
This heteroduplex segregation can cause single cells transformed by more than one donor DNA molecule to give rise to genetically heterogeneous daughter cells.
For low-molecular-mass species, subsequent reaction may occur with another parent selenol molecule to give a diselenide (reaction 8), or hydrolysis to give a RSe-O− species (or its neutral form RSe-OH) (reaction 9).
