Phospholides are easily obtained by treatment of the open-chain acetylenic phosphines shown by an excess of lithium at room temperature in THF (12 examples).

Under Pd(II)/CuI cocatalysis, o-diarylphosphinophenylalkynes cyclize in boiling toluene via C-P bond cleavage and arylphosphination of the C≡C bond. This protocol provides an unprecedented atom- and step-efficient access to optoelectronically and biologically interesting benzophospholes.

The selective formation of an annulated 4H‐pyran from an allenoate and an olefin demonstrated the dual roles of triethylenediamine (DABCO) in both Lewis base promoted [4 + 2] annulation and Brønsted base mediated C=C isomerization. Interestingly, the role of the Brønsted base could be quenched selectively with the presence of a Brønsted acid (PhCO2H), and annulated 3,4‐dihydro‐2H‐pyran was obtained as the major product.

A new pair of P-stereogenic ligands with multiple chiral centers were synthesized and used in the copper­(I)-catalyzed enatioselective [3 + 2] cycloaddition of iminoesters with alkenes. A variety of highly functionalized pyrrolidines were obtained in excellent yield and enatioselectivity. This is the first example of a pair of P-stereogenic ligands working as pseudoenantiomers to tune the enantio- and diastereoselective 1,3-dipolar cycloaddition, and providing a pair of enantiomerically pure pyrrolidines, respectively.

A facile method to synthesize quaternized benzophospholes on gram scale was reported, and the products were isolated by simple filtration. During this research, a series of σ-oxaphosphoranes incorporating polycyclic aromatic hydrocarbons (PAHs) were obtained. The grafting of α-phenolate groups on the phosphorus center enhances the coplanarity of the system.