A Transient Directing Group Strategy Enables Enantioselective Multicomponent Organofluorine Synthesis. [PDF]
The vicinal fluorofunctionalization of alkenes represents an expedient strategy for converting feedstock olefins into valuable fluorinated molecules and as such has garnered significant attention from the synthetic community; however, current methods ...
Liu Z +6 more
europepmc +3 more sources
Directing-group-free catalytic dicarbofunctionalization of unactivated alkenes. [PDF]
In the absence of directing auxiliaries, the catalytic addition of carbogenic groups to unactivated alkenes with control of regioselectivity remains an ongoing challenge in organic chemistry.
Wang H +4 more
europepmc +2 more sources
Progress in Catalytic Asymmetric Reactions with 7-Azaindoline as the Directing Group [PDF]
α-Substituted-7-azaindoline amides and α,β-unsaturated 7-azaindoline amides have emerged as new versatile synthons for various metal-catalyzed and organic-catalyzed asymmetric reactions, which have attracted much attention from chemists.
Yan-Ping Zhang +5 more
doaj +2 more sources
PdII -Catalyzed C(alkenyl)-H Activation Facilitated by a Transient Directing Group. [PDF]
Palladium(II)‐catalyzed C(alkenyl)−H alkenylation enabled by a transient directing group (TDG) strategy is described. The dual catalytic process takes advantage of reversible condensation between an alkenyl aldehyde substrate and an amino acid TDG to ...
Liu M +6 more
europepmc +2 more sources
A "Traceless" Directing Group Enables Catalytic SN2 Glycosylation toward 1,2-cis-Glycopyranosides. [PDF]
Generally applicable and stereoselective formation of 1,2-cis-glycopyranosidic linkage remains a long sought after yet unmet goal in carbohydrate chemistry. This work advances a strategy to this challenge via stereoinversion at the anomeric position of 1,
Ma X +5 more
europepmc +2 more sources
Palladium-catalyzed direct asymmetric C-H bond functionalization enabled by the directing group strategy. [PDF]
In the past decade, selective C–C and C-heteroatom bond construction through palladium-catalyzed direct C–H bond functionalization has been extensively studied by employing a variety of directing groups.
Yang K, Song M, Liu H, Ge H.
europepmc +2 more sources
Transient Directing Group Enabled Pd-catalyzed γ-C(sp3)-H Oxygenation of Alkyl Amines. [PDF]
We report a general protocol for γ-C(sp3)–H acyloxylation and alkoxylation of free amines using 2-hydroxynicotinaldehyde as the transient directing group.
Chen YQ, Wu Y, Wang Z, Qiao JX, Yu JQ.
europepmc +2 more sources
Palladium-catalyzed asymmetric migratory diarylation of unactivated directing-group-free internal alkenes [PDF]
Enantioselective dicarbofunctionalization of alkenes is a powerful strategy for constructing functionalized sp³-rich molecules, yet it remains challenging for unactivated substrates lacking directing groups.
Linlin Fan +6 more
doaj +2 more sources
Ni-catalyzed regio- and stereo-defined intermolecular cross-electrophile dialkylation of alkynes without directing group [PDF]
The synthesis of regio- and stereo-defined alkenes with multiple alkyl substituents is an unmet challenge. Here, the authors report a nickel-catalyzed intermolecular cross-dialkylation of alkynes devoid of directing or activating groups to afford ...
Yi-Zhou Zhan, Nan Xiao, Wei Shu
doaj +2 more sources
PdII -Catalyzed Enantioselective C(sp3 )-H Arylation of Cyclobutyl Ketones Using a Chiral Transient Directing Group. [PDF]
The utilization of chiral transient directing groups (TDGs) has recently emerged as a promising approach for developing Pd(II)-catalyzed enantioselective C(sp3)−H activation reactions.
Xiao LJ +6 more
europepmc +2 more sources

