Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Wei Yu"'
Publikováno v:
ChemInform. 47
Visible light-induced monofluoromethylenation of benzofurans and benzothiophenes with ethyl bromofluoroacetate was developed. This method provided a convenient access to novel α-fluoro-α-heteroarylesters under mild reaction conditions.
Publikováno v:
ChemInform. 47
Two new pyrrolidine alkaloids, ficushispimines A (1) and B (2), a new ω-(dimethylamino)caprophenone alkaloid, ficushispimine C (3), and a new indolizidine alkaloid, ficushispidine (4), together with the known alkaloid 5 and 11 known isoprenylated fl
Publikováno v:
ChemInform. 47
The reactions of 2-azido-N-arylacrylamides with trifluoromethyl radicals and azidyl radicals were investigated by using Togni's reagent and Zhdankin's reagent as the source of these radicals. Under the catalysis of CuI, Togni's reagent was firstly co
Publikováno v:
ChemInform. 47
A new method was developed for the synthesis of quinoxalines. This method employs N-arylenamines and TMSN3 as the starting materials and implements two oxidative C–N bond-forming processes in a tandem pattern by using (diacetoxyiodo)benzene as the
Publikováno v:
ChemInform. 47
This paper reports a new method for the synthesis of 3-aminooxindole derivatives. Ethyl 2-(N-arylcarbamoyl)-2-iminoacetates, which can be prepared from the reaction of α-ethoxycarbonyl-α-bromo-N-phenylacetamides with sodium azide, were found to und
Publikováno v:
ChemInform. 47
This paper reveals that visible light irradiation with Ru(phen)(3)Cl-3 as photocatalyst can induce ethyl 2-(N-arylcarbamoyl)-2-chloroiminoacetates to undergo N Cl cleavage to give alpha-(aminocarbonyl)iminyl radicals under an argon atmosphere. The su
Publikováno v:
ChemInform. 46
The oxidizing system of tert-butyl hydroperoxide (TBHP) and tetrabutylammonium iodide (TBAI) is capable of generating -(arylaminocarbonyl)iminyl radicals from ethyl 2-(N-arylcarbamoyl)-2-iminoacetates. These iminyl radicals preferably undergo intramo
Publikováno v:
ChemInform. 46
Two new isoprenylated flavonoids, laevigasins A (I) and B (II), and one new isoprenylated 2-arylbenzofuran, laevigasin C (III), are isolated from the title species along with eight known compounds.
Publikováno v:
ChemInform. 46
A series of benzo[a]carbazoles (IV) is readily prepared by oxidative photochemical cyclization of readily available ketones (III).
Publikováno v:
ChemInform. 46
Dihydropyrrole derivatives are synthesized through an intramolecular imination/azidation sequence starting from title oximes.