Compounds of divalent sulfur or trivalent phosphorus are known to be easily oxidized hence mainly used to remove oxygen atom. Triphenylphosphine oxide is a compound that is formed after oxidation of Triphenylphosphine reagent. It is another reagent that can be used to get rid of an oxygen atom from another element. The information below describes how ordinary electrophilic substitution reacts with pyridine.
Michanganyiko ya salfa iliyogawanyika au fosforasi trivalent inajulikana kuwa na oksidi kwa urahisi kwa hivyo hutumiwa sana kuondoa atomi ya oksijeni. Oksidi ya Triphenylphosphine ni kiwanja ambacho huundwa baada ya oxidation ya reagent ya Triphenylphosphine. Ni reagent nyingine ambayo inaweza kutumika kuondoa atomi ya oksijeni kutoka kwa kipengele kingine. Habari iliyo hapa chini inaelezea jinsi uingizwaji wa kawaida wa kielektroniki humenyuka na pyridine.