Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Zheming Xiao"'
Publikováno v:
Organic Letters. 22:1485-1489
A new approach was developed to construct the tetrahydroxanthone by a Knoevenagel condensation/6π-electronic cyclization/aromatization cascade starting from readily available cyclohexane-1,3-diones and unsaturated aldehydes. This strategy provides a
Publikováno v:
Organic Letters. 19:1834-1837
The first total synthesis of the dimeric tetrahydroxanthone ascherxanthone A has been accomplished. This synthetic strategy features (1) enantioselective intramolecular allylic C-H oxidation to construct a core chiral chromane, (2) intramolecular ald
Publikováno v:
Organic Chemistry Frontiers. 3:354-358
A metal-free, photo-induced C–C bond formation methodology was developed to construct tetrahydrofluorenones and their related structures. This mild and efficient method proceeds either through electrocyclization or radical cyclization from β-Cl or
Publikováno v:
Chem. Commun.. 50:5254-5257
A metal-free, photo-induced C-O bond formation methodology was developed to construct tetrahydroxanthones. This mild and efficient methodology was based on intramolecular oxygen trapping of the reactive species produced by photolytic activation of a
Publikováno v:
ChemInform. 47
A metal-free, photo-induced C–C bond formation methodology was developed to construct tetrahydrofluorenones and their related structures. This mild and efficient method proceeds either through electrocyclization or radical cyclization from β-Cl or
Publikováno v:
ChemInform. 46
In contrast to the traditional Broensted- or Lewis acid-promoted Nazarov cyclization reactions the photo-Nazarov cyclization of vinyl aryl ketones proceeds under mild, neutral or basic conditions.
ChemInform Abstract: A Photo-Induced C-O Bond Formation Methodology to Construct Tetrahydroxanthones
Publikováno v:
ChemInform. 45
The title transformation is based on intramolecular trapping of the reactive species produced by photocatalytic activation of a C—Cl bond.
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 20(28)
The reaction conditions and scope of the photo-Nazarov reaction of aryl vinyl ketones were investigated. In contrast to the conventional acid-catalyzed methods, this photolytic electrocyclization proceeds in the neutral or basic conditions. Irradiati