Zobrazeno 1 - 10
of 293
pro vyhledávání: '"Anna Albrecht"'
Publikováno v:
Molecules, Vol 27, Iss 20, p 6809 (2022)
Herein, we describe the synthesis of a variety of chiral hybrid pyrrolidine-chromanone polycyclic derivatives. A convenient (3+2)-annulation of azomethine ylides with chromone-3-carboxylic acid realized under Brønsted base catalysis produced highly
Externí odkaz:
https://doaj.org/article/e1af08f698f14445b641b4e11f2663f4
Synthesis of cyclopent-1-enecarbonitriles via a tandem Giese/HWE reaction initiated by visible light
Publikováno v:
Chemical Communications. 59:4372-4375
The manuscript describes studies on the radical tandem reaction involving Giese reaction followed by HWE olefination.
Publikováno v:
The Journal of Organic Chemistry. 87:9645-9653
In the manuscript, reductive and decarboxylative azaarylation of coumarin-3-carboxylic acids is described. It utilizes the photocatalytic activation of (cyano)azaarenes in the presence of
Autor:
Jan Bojanowski, Anna Albrecht
Publikováno v:
Molecules, Vol 26, Iss 15, p 4689 (2021)
The doubly decarboxylative Michael–type addition of pyridylacetic acid to chromone-3-carboxylic acids or coumarin-3-carboxylic acids has been developed. This protocol has been realized under Brønsted base catalysis, providing biologically interest
Externí odkaz:
https://doaj.org/article/b8c354f718714ac3bb94b71ee8d27f29
Autor:
Jan Antfolk, Debra Lieberman, Christopher Harju, Anna Albrecht, Andreas Mokros, Pekka Santtila
Publikováno v:
Frontiers in Psychology, Vol 9 (2018)
Due to the intense selection pressure against inbreeding, humans are expected to possess psychological adaptations that regulate mate choice and avoid inbreeding. From a gene’s-eye perspective, there is little difference in the evolutionary costs b
Externí odkaz:
https://doaj.org/article/a30369778def4738b2ccf64b93731d73
Publikováno v:
European Journal of Organic Chemistry. 2022
Publikováno v:
Chemical Communications. 57:3387-3390
In this manuscript, a novel method for the preparation of enantiomerically enriched pyridine derivatives has been described. It is based on the utilization of readily available 2-pyridylacetic acids as valuable synthons for the introduction of a pyri
Publikováno v:
RSC Advances. 11:27782-27786
Doubly decarboxylative, photoredox synthesis of 4-substituted-chroman-2-ones and 2-substituted-chroman-4-ones is described. The reaction involves two independent decarboxylation processes: the first one initiating the cycle and the second completing
Publikováno v:
Organic & Biomolecular Chemistry. 19:3075-3086
1,3-Dipolar cycloaddition constitutes a powerful means for the synthesis of five-membered heterocycles. Recently, the potential of this field of chemistry has been expanded by the employment of organocatalytic activation strategies. One group of subs
Publikováno v:
Molecules, Vol 24, Iss 14, p 2565 (2019)
In this manuscript, a novel, decarboxylative Michael reaction between α-substituted azlactones and chromone-3-carboxylic acids is described. The reaction proceeds in a sequence Michael addition followed by decarboxylative deprotonation, and it resul
Externí odkaz:
https://doaj.org/article/22a6fb2cf7a8428bbed0422efd0519af