Phosphorus‐substituted heterocycles represent an important class of organophosphorus
compounds, which not only widely exist in biologically active pharmaceuticals …

Pyrazole is an essential structural component of many pharmaceuticals and agrochemicals.
The synthesis of pyrazoles has been a subject of intense research for several decades …

The compounds characterized by the presence of a λ5-phosphorus functionality at the α-
position with respect to the diazo moiety, here referred to as λ5-phosphorus-containing α …

The double 1, 3-dipolar cycloaddition of allenoates with nitrilimines has been achieved
under mild reaction conditions, affording a variety of spirobidihydropyrazoles in moderate to …

A new method has been developed for the catalytic enantioselective 1, 3-dipolar
cycloaddition of the Seyferth–Gilbert reagent (SGR) to isatylidene malononitriles using a …

The Cu-catalyzed three-component reaction between quinolines, diazo compounds, and
alkenes has been established for direct construction of indolizine derivatives via quinolinium …

Abstract The Bestmann–Ohira reagent is a unique and versatile reagent in organic
synthesis. It is a well‐known homologating agent for the conversion of aldehydes into the …

3-Alkyl/aryl-1 H-indazoles and 3-alkyl/aryl-3 H-indazole-3-phosphonates were synthesized
efficiently through a 1, 3-dipolar cycloaddition reaction between α-substituted α …

Two efficient highly regioselective routes for the synthesis of unsymmetrically substituted 1-
aryl-3, 5-bis (het) arylpyrazoles with complementary regioselectivity starting from active …

An efficient, three-component domino reaction between aldehydes, amines, and the
Bestmann–Ohira reagent is reported that enables a general, mild, and straightforward …