“…Generally, the most common paths for the construction of PÀ C and PÀ X (X=N, O, S and Se) bonds proceed by the nucleophilic substitution of toxic halides with ROH/RSX, [9] Friedel-Crafts reaction, [10] Michaelis-Arbuzov reaction [11] and also with the use of organometallic and a phosphine. [12] Likewise, phosphorus reagents can be applied as nucleophilic species for the formation of new bonds, starting for example from dialkyl-or diaryl-phosphine oxides, phosphonates esters, hypophosphite, phosphines, phosphine-borane, among others. [13][14][15][16] In general, these strategies can follow a direct phosphorylation in heterocycles, involving the crosscoupling between halides or alcohols of aryl or alkyl, and can also proceed to phospha-aldol, phospha-Michael or phospha-Mannich reactions.…”