Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Marian Blanco Ponce"'
Autor:
Alexander Villinger, Peter Ehlers, Eugenio Torres Rodríguez, Marian Blanco Ponce, Peter Langer, Silvio Parpart
Publikováno v:
Synthesis. 53:1237-1246
A concise and modular synthesis of pyrrolo[1,2-a][1,6]- and [1,8]naphthyridines by a one-pot two-step reaction consisting of electrophilic acylation followed by an alkyne-carbonyl-metathesis reaction as the final cyclization step is reported. This de
Autor:
Marian Blanco Ponce, Maria Ines Mangione, Robinson Hermosilla Espinosa, Eugenio Torres Rodríguez, Peter Ehlers, Peter Langer
Publikováno v:
European Journal of Organic Chemistry. 2022
Autor:
Peter Langer, Ngo Thi Thuan, Tuan Anh Nguyen Tien, Nguyen Thi Son, Marian Blanco Ponce, Tuan Thanh Dang, Peter Ehlers
Publikováno v:
Synlett. 31:1308-1312
Two-step sequential procedures for the Pd-catalyzed synthesis of 5- and 6-azaindoles are reported. The reactions proceed in very good yields. 6-Azaindoles are formed through site-selective Pd-catalyzed Sonogashira reaction of 3,4-dibromopyridine with
Publikováno v:
Organic & Biomolecular Chemistry. 18:6531-6536
Several thieno[2,3-h]-/[3,2-h]- and [2,3-f]quinolines have been synthesised from 2,3-dihalogenated pyridines or -quinolines by site-selective Pd catalysed cross-coupling reactions and Bronsted acid mediated cycloisomerisations as the final key step.
Publikováno v:
Organicbiomolecular chemistry. 18(33)
Several thieno[2,3-h]-/[3,2-h]- and [2,3-f]quinolines have been synthesised from 2,3-dihalogenated pyridines or -quinolines by site-selective Pd catalysed cross-coupling reactions and Brønsted acid mediated cycloisomerisations as the final key step.
Autor:
Ngo Nghia Pham, Peter Ehlers, Marian Blanco Ponce, Tuan Thanh Dang, Anke Spannenberg, Ghazwan Ali Salman, Peter Langer
Publikováno v:
European Journal of Organic Chemistry. 2017:3865-3873
An effective and atom-economic synthesis of quinolino[3',4':4,5]pyrrolo[1,2-f]phenanthridine has been developed. The protocol involves a site-selective Sonogashira reaction of 3,4-dihaloquinoline, followed by a domino C-N coupling/hydroamination/C-H
Synthesis of non-symmetrical alkynylpyridines by chemoselective Sonogashira cross-coupling reactions
Autor:
Eugenio Torres Rodríguez, Peter Ehlers, Lars Ohlendorf, Rodisnel Perdomo Rivera, Marian Blanco Ponce, Peter Langer
Publikováno v:
Tetrahedron. 75:130559
4-Bromo-2,3,5-trichloro-6-iodopyridine was studied as a new substrate in chemoselective Sonogashira reactions. This approach provides an efficient access to non-symmetrical mono-, di-, tri- and pentaalkynylated pyridines in good yields. Selected pent