Linhua Lu

Iron-catalyzed direct alkenylation of sp3(C–H) bonds via decarboxylation of cinnamic acids under ligand-free conditions

An example of highly efficient low-cost ferrocene-catalyzed decarboxylative C(sp2)–C(sp3) coupling reactions via C–H functionalization has been developed successfully. It is noteworthy that nanoparticles of Fe3O4 could be used as a reusable catalyst for 7 times in the absence of ligand.

Copper-catalyzed methyl esterification reactions via C-C bond cleavage.

The highly effective synthesis of methyl esters from benzylic alcohols, aldehydes, or acids via copper-catalyzed C-C cleavage from tert-butyl hydroperoxide is reported in this paper for the first time. Our protocol is easily accessible and practical, making it a possible supplement for the traditional way.

Functionalization of amides via copper-catalyzed oxyalkylation of vinylarenes and decarboxylative alkenylation of sp3 C-H.

An efficient protocol was developed to prepare a series of derivatives from amides by copper-catalyzed oxyalkylation of vinylarenes and decarboxylative alkenylation of sp(3) C-H. This method is simple, practical, and inexpensive.

Copper-catalyzed synthesis of internal alkynes via domino coupling between 1,1-dihalo-1-alkenes and arylboronic acids

We have developed the practical copper-catalyzed formation of various internal alkynes via domino couplings between 1,1-dihalo-1-alkenes and arylboronic acids in the presence of low-cost 8-hydroxylquinoline as the ligand.

Transition‐Metal‐Free Synthesis of N‐(1‐Alkenyl)imidazoles by Potassium Phosphate‐Promoted Addition Reaction of Alkynes to Imidazoles

The addition reaction of alkynes to N-heterocycles by simply heating in DMSO with potassium phosphate is reported. Good yields with high stereoselectivity could be achieved for a range of substrates. The scope is quite general for both amines and phenylacetylenes. In addition, internal alkynes and α-bromostyrene were also examined in this reaction. This process is efficient and useful for the synthesis of (Z)-N-(1-alkenyl)imidazoles and related Z products. Thus, the reaction is useful because of the importance of the imidazole scaffold.

A Ni(OAc) 2 ·4H 2 O-catalysed Sonogashira-type coupling reaction of aryl iodides and terminal alkynes in the presence of CuI

An effective and promising Ni/Cu catalytic system for the coupling of aryl iodides with various terminal alkynes has been developed. For the first time the readily available chiral amino alcohol has been employed as the ligand for the Pd-free Sonogashira coupling reaction.

Synthesis of Arylethylene or Diarylethylene Compounds by Pd-Catalyzed Heck Coupling Reaction

Abstract We have developed an effective palladium-catalyzed arylation or diarylation couplings of olefins with various aryl halides in the presence of readily available ligands. This method is simple, economical, and practical for the synthesis of arylethylene and diarylethylene. Supplementary materials are available for this article. Go to the publishers online edition of Synthetic Communications® for full experimental and spectral details. GRAPHICAL ABSTRACT