Eliminations giving imines, nitriles, thiocarbonyls and carbonyls

Eliminations giving imines, nitriles, thiocarbonyls and carbonyls 

There is further evidence supporting a continuum of transition states for bimolecular thiocarbonyl eliminations . Compared to alkene eliminations, the transition states have extensive carbanion character, but little double-bond character, attributable to the low effectiveness of rr-electron overlap involving the 3p orbitals of sulphur. 

Braumann and Hill have studied the dehydrofluorinations giving imine and nitrile products. These dehydrofluorinations occur under considerably milder conditions than the corresponding eliminations leading to alkenes, in line with the weaker nature of the N-F than the C-F bond. 

Bethell has reviewed the chemical properties of carbenes and has discussed the mechanisms of the reactions in which they are formed. 

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A.3. Eliminations giving imines, nitriles, thiocarbonyls and carbonyls... 

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