Enantioselective C−H alkylation of ferrocene carboxamides with diazomalonates using an achiral Cp*Ir(III)/chiral carboxylic acid is described. The combination of achiral Cp*Ir(III) complex and a binaphthyl-based chiral carboxylic acid provided planar...
A cobalt(III)-catalyzed directed C-7 alkynylation of
indolines
with easily accessible bromoalkynes has been developed. The reaction
has a broad substrate scope with excellent yields and represents a
powerful route to the synthesis of 7-alkynyl-substituted indolines.
In addition, the reaction can be extended to the coupling of N-aryl 7-azaindoles, highlighting the synthetic practicability
of the strategy.
An efficient synthesis of ferrocene derivatives via Ru(II)-catalyzed direct selective C-H mono-alkynylation with easily accessible bromoalkyne compounds under weakly amide groups has been presented. This protocol provides an approach towards...
An efficient and selective insertion of indoles into ethynylethylene carbonates has been achieved via CpXCo(III)‐catalyzed C–H functionalization. Compared with a Cp*Co(III) catalyst, the more sterically hindered CpXCo(III) improved the selectivity of rare 1,2‐insertion. This protocol provides an approach for synthesizing various vinylindoles in good yields with high regioselectivity.
A facile synthetic method of Alkenylarene derivatives via cobalt(III)-catalyzed C-H hydroarylation with terminal alkynes has been presented. This helpful protocol provides a way to use terminal alkynes to couple with aryl groups through 1, 2-insertion, with high yield and good selectivity to obtain the corresponding hydroarylation products.
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