cis-Delivery of H2 to the π-system of an unsaturated substrate is the canonical course of
metal catalyzed hydrogenation reactions. The semireduction of internal alkynes with the aid …

A heteroleptic dirhodium paddlewheel complex comprising three chiral carboxylate ligands
and one achiral acetamidate ligand has recently been found to be uniquely effective in …

Disclosed here is the first geminal (gem‐) hydroborative cyclization of enynes. Different from
known hydroborative cyclizations, this process adds hydrogen and boron to the same …

The only recently discovered gem-hydrogenation of internal alkynes is a fundamentally new
transformation, in which both H atoms of dihydrogen are transferred to the same C atom of a …

[Cp* RuCl] 4 catalyzes the addition of i Pr3SiC≡ CX (X= H, Cl) across internal alkynes with
formation of 1, 3-enyne or 1-chloro-1, 3-enyne derivatives, respectively; the reaction follows …

Semihydrogenation of alkynes to alkenes represents a fundamentally useful transformation.
In addition to the well-known cis-and trans-semihydrogenation, herein a geminal …

The heteroleptic dirhodium paddlewheel catalyst 7 with a chiral carboxylate/acetamidate
ligand sphere is uniquely effective in asymmetric [2+ 1] cycloadditions with α‐diazo‐α …

The unusual geminal hydrogenation of a propargyl alcohol derivative with [CpXRuCl] as the
catalyst entails formation of pianostool ruthenium carbenes in the first place; these reactive …

Abstract [(NHC)(cymene) RuCl2](NHC= N‐heterocyclic carbene) complexes instigate a light‐
driven gem‐hydrogenation of internal alkynes with concomitant formation of discrete Grubbs …

Preparation of skipped dienes with a quaternary carbon center at the C‐3 position remains a
synthetic challenge. We report here an iridium‐catalyzed formal addition of tertiary sp3 C− H …