Results 61 to 70 of about 48,499 (273)
ABSTRACT Inositol pyrophosphates (PP‐InsPs) are central regulators of eukaryotic signaling events. While certain PP‐InsP isomers have been conclusively linked to the regulation of phosphate homeostasis through interaction with SPX domain‐containing proteins in plants, the functions of the recently discovered isomer 4/6‐PP‐InsP5 remain largely unknown ...
Kevin Ritter +10 more
wiley +1 more source
Transition metal-catalyzed addition of organometallics to aryl(alkyl)alkynes has been well known to proceed with the regioselectivity in forming a carbon–carbon bond at the alkyl-substituted carbon (β-addition).
Chao Sun +4 more
doaj +1 more source
A Straightforward Selective Acylation of Phenols over ZSM-5 towards Making Paracetamol Precursors
Commercially available ZSM-5 was minimally treated as the catalyst to selectively acylate phenols. The ZSM-5 was simply immersed in ammonium nitrate in order to fill the pores with Brönsted acid to concentrate the catalytic reactions inside the pores ...
Robby Roswanda +3 more
doaj +1 more source
Organocatalytic synthesis of axially chiral atropisomers [PDF]
This review summarises the recent progress made in the organocatalytic synthesis of atropisomeric compounds. Methodologies based on dynamic kinetic resolution and direct access to BINOL-like biaryls are described.
Renzi, P.
core +1 more source
Ambient Hydrocarbonylation of Olefins Enabled by Visible‐Light
A novel photo‐induced methodology for hydrocarbonylation has been established, resolving the inherent conflicts between competitive olefin and CO insertion in traditional methods that necessitate harsh conditions. Accordingly, an efficient and versatile hydrocarbonylation of olefins enabled by visible‐light irradiation under ambient conditions has been
Hongchi Liu, Tianze Zhang, Hanmin Huang
wiley +1 more source
Regio‐ and enantioselective nickel-alkyl catalyzed hydroalkylation of alkynes
The migratory insertion of metal-hydride into alkene has allowed regioselective access to organometallics, readily participating in subsequent functionalization as one conventional pathway of hydroalkylation, whereas analogous process with feedstock ...
Qian Gao +7 more
doaj +1 more source
Gold(I)-Catalysed Direct Thioetherifications Using Allylic Alcohols: an Experimental and Computational Study [PDF]
A gold(I)-catalysed direct thioetherification reaction between allylic alcohols and thiols is presented. The reaction is generally highly regioselective (S(N)2′).
Barker, Graeme +6 more
core +1 more source
A Platinum molecular complex immobilised on the surface of graphene as active catalyst in alkyne hydrosilylation [PDF]
A platinum complex bearing a N‐heterocyclic carbene (NHC) ligand functionalised with a pyrene‐tag is immobilised onto the surface of reduced graphene oxide (rGO).
Borja, Pilar +4 more
core +3 more sources
Regioselective Dimetallapolycarbyl Hydrometalation
The reactions of [L(CO) 2 W≡CC≡CC≡CC≡ W(CO) 2 L] (L = HB(pz) 3 , HB(pz') 3 ; pz = pyrazol-1-yl, pz' = 3,5-dimethylpyrazol-1-yl) with [RuHCl(CO)(PPh 3 ) 3 ] result in regioselective hydroruthenation of one C≡C bond of the WC 6 W spine to provide the coordinatively unsaturated hex-2-en-4-yn-3-yl-1,6-diylidyne-bridged complex[Ru{C(CS≡CC≡W(CO) 2 L)=CHC≡W ...
Dewhurst, Rian +2 more
openaire +2 more sources
Regioselective Hydroformylation of Allylic Alcohols [PDF]
A highly regioselective hydroformylation of allylic alcohols is reported toward the synthesis of β-hydroxy-acid and aldehyde products. The selectivity is achieved through the use of a ligand that reversibly binds to alcohols in situ, allowing for a directed hydroformylation to occur.
Thomas E, Lightburn +3 more
openaire +2 more sources

