Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Xiaojia Si"'
Autor:
Xiaojia Si, Matthias Rudolph, Abdullah M. Asiri, Lumin Zhang, A. Stephen K. Hashmi, Zuozuo Wu
Publikováno v:
Organic Letters. 22:5844-5849
Saturated heterocyclic acetals are useful fragments in organic synthesis and other fields. Herein, C(sp3)–H dehydrogenative cross-couplings of ethers, tetrahydrothiophenes, and pyrrolidines were ac...
Publikováno v:
Journal of the American Chemical Society. 142:10485-10493
Geminal diboronates have attracted significant attention because of their unique structures and reactivity. However, benzofuran-, indole-, and benzothiophene-based benzylic gem-diboronates, buildin...
Publikováno v:
Organic Letters. 21:6329-6332
Herein a synergistic combination of a nickel catalyst and benzaldehyde for the utilization of amides and thioethers in C(sp3)–H alkylation and arylation reactions employing simple aryl or alkyl hal...
Autor:
Yangyang Yang, Matthias Rudolph, Frank Rominger, Sina Witzel, Lumin Zhang, A. Stephen K. Hashmi, Xiaojia Si, Kohei Sekine
Publikováno v:
ACS Catalysis. 9:6118-6123
[Au2(μ-dppm)2]Cl2-mediated photocatalysis reactions are usually initiated by ultraviolet A (UVA) light; herein, an unreported system using blue light-emitting diodes (LEDs) as excitation light sour...
Autor:
A. Stephen K. Hashmi, Ximei Zhao, Florian F. Mulks, Yangyang Yang, Frank Rominger, Bing Tian, Xiaojia Si, Matthias Rudolph
Publikováno v:
Advanced Synthesis & Catalysis, 361(13), 3155-3162. WILEY-V C H VERLAG GMBH
A concise and highly stereoselective synthesis of alkynyloxazolines via a gold-catalyzed domino cyclization-alkynylation cascade of N-propargylcarboxamides with benziodoxole reagents is reported. This new protocol, which represents an attractive alte
Autor:
Yangyang Yang, A. Stephen K. Hashmi, Xiaojia Si, Kohei Sekine, Sina Witzel, Matthias Rudolph, Lumin Zhang, Marc Zimmer
Publikováno v:
Angewandte Chemie International Edition. 58:1823-1827
Herein we report a highly selective photoredox C(sp3 )-H alkylation/arylation of ethers through the combination of a photo-organocatalyst (benzaldehyde) and a transition-metal catalyst (nickel). This method provides a simple and general strategy for
Autor:
Lumin Zhang, Matthias Rudolph, Yangyang Yang, Xiaojia Si, A. Stephen K. Hashmi, Marc Zimmer, Kohei Sekine, Sina Witzel
Publikováno v:
Angewandte Chemie. 131:1837-1841
Publikováno v:
Journal of the American Chemical Society. 142(23)
Geminal diboronates have attracted significant attention because of their unique structures and reactivity. However, benzofuran-, indole-, and benzothiophene-based benzylic
Publikováno v:
Tetrahedron Letters. 59:1614-1618
An efficient approach to N, N′-unsymmetrically substituted ureas 9 has been developed through the ammonolysis process of N-Boc protected anilines 7 with amines prompted by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD). Moreover, a convenient protocol f
Publikováno v:
Organic letters. 21(16)
Herein a synergistic combination of a nickel catalyst and benzaldehyde for the utilization of amides and thioethers in C(sp