Redox Reorganization: Aluminium Promoted 1,5-Hydride Shifts Allow the Controlled Synthesis of Multisubstituted Cyclohexenes. [PDF]
An efficient synthesis of cyclohexenes has been achieved from easily accessible tetrahydropyrans via a tandem 1,5‐hydride shift–aldol condensation. We discovered that readily available aluminium reagents, e.g.
Smith LB +8 more
europepmc +2 more sources
Phenyl Sulfones: A Route to a Diverse Family of Trisubstituted Cyclohexenes from Three Independent Nucleophilic Additions. [PDF]
A novel process is described for the synthesis of di- and trisubstituted cyclohexenes from an arene. These compounds are prepared from three independent nucleophilic addition reactions to a phenyl sulfone (PhSO2R; R = Me, Ph, and NC4H8) dihapto ...
Simpson SR +9 more
europepmc +2 more sources
The double protonation of dihapto-coordinated benzene complexes enables dearomatization using aromatic nucleophiles [PDF]
Friedel-Crafts Arylation (the Scholl reaction) is the coupling of two aromatic rings with the aid of a strong Lewis or Brønsted acid. This historically significant C–C bond forming reaction normally leads to aromatic products, often as oligomeric ...
Justin T. Weatherford-Pratt +7 more
doaj +2 more sources
Tungsten-anisole complex provides 3,6-substituted cyclohexenes for highly diversified chemical libraries. [PDF]
Medicinal chemists use vast combinatorial molecular libraries to develop leads for new pharmaceuticals. The syntheses of these compounds typically rely on coupling molecular fragments through atoms with planar (sp2) geometry.
Weatherford-Pratt JT +12 more
europepmc +2 more sources
Polyoxygenated Cyclohexenes from Uvaria grandiflora with Multi-Enzyme Targeting Properties Relevant in Type 2 Diabetes and Obesity. [PDF]
Shikimic acid-derived polyoxygenated cyclohexene natural products commonly occurring in several species of the Uvaria represent natural products with promising biological activities.
Quimque MTJ +7 more
europepmc +2 more sources
Highly oxygenated cyclohexenes from the leaves of Uvaria grandiflora Roxb. ex Hornem and their cytotoxic and α-glucosidase inhibitory activities [PDF]
Phytochemical investigation of the leaf extract of Uvaria grandiflora Roxb. ex Hornem led to the isolation and identification of two new highly oxygenated cyclohexenes, uvariagrandols A (1) and B (2), together with seven known compounds (3–9).
Virayu Suthiphasilp +13 more
doaj +2 more sources
Palladium-catalyzed enantioselective β-hydride elimination for the construction of remote stereocenters [PDF]
The β-H elimination is a crucial elementary step in transition-metal catalysis, but controlling the stereochemistry of this process has been underdeveloped.
Shaozi Sun, Shengnan Sun, Weiwei Zi
doaj +2 more sources
Approaches to the Total Synthesis of Conduramines: A Review
This review reports on the total synthesis of conduramines, which are formally derived from conduritols, mainly containing a trihydroxy aminocyclohexene core.
Hanumantharayappa Bharathkumar +3 more
doaj +1 more source
A new finding in the old Knoevenagel condensation reaction
Reaction of benzaldehyde (5a) with defined quantities of ethyl cyanoacetate (6) in presence of piperidine was studied. In a neat condition, hexasubstituted cyclohexeneamine (7a) with three ester substituents was formed along with ethyl acrylate (9a ...
Attimogee Shivamurthy Harisha +5 more
doaj +1 more source

