Synthesis of naphthyl-substituted terminal olefins via Pd-Catalyzed one-pot coupling of acetylnaphthalene, N -Tosylhydrazide with aryl halide

KI/TBHP-promoted [3 + 2] cycloaddition of pyrrolo[1,2-a]quinoxalines and N-arylsulfonylhydrazones

A series of diverse fused [1,2,4]triazolo[3,4-c]quinoxalines was obtained by an efficient KI/TBHP-promoted [3 + 2] cycloaddition of pyrrolo[1,2-a]quinoxalines and N-arylsulfonylhydrazones.

Synthesis of 9-biarylfluorenes by one-pot, three-step reactions of N-tosylhydrazones, p-bromobenzeneboronic acid, and arylboronic acids

A one-pot, three-step reaction of N-tosylhydrazones, p-bromobenzeneboronic acid, and arylboronic acids is established for the synthesis of 9-biarylfluorenes. Sequential formation of Csp3–Csp2 bond and Csp2–Csp2 bonds using readily available starting materials leads to the 9-biarylfluorene products in good yields. The present transformation features a broad substrate scope and good functional group tolerance.

Synthesis of 3-Aryl-1-Indanones via CsF-Promoted Coupling of Arylboronic Acids with N-Tosylhydrazones

A series of 173-aryl-1-indanones, four of which are novel, were prepared in good yield via a CsF-promoted reductive cross-coupling of the monotosylhydrazone of a 1,3-indanedione with an arylboronic acid. The method demonstrates wide substrate scope and good functional group tolerance. Moreover, the 3-aryl-1-indanones could also be prepared on a multi-gram scale.