Month: October 2019

New computational protocols for the design of drugs based on conformational dynamics of enzymes

Many drugs used for the treatment of diseases present chiral properties. In this study we aimed to produce an optically pure stereoisomer that is a key intermediate for the production of steroidal medicines such as levonorgestrel or gestodene. The targeted stereoisomer was the (13R, 17S)-methyl secol, which can be produced by the asymmetric reduction of

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Unprecedented C-F/C-H Double-Insertion by Ni(0)

Nickel-catalyzed C-F activations enabled chemo-divergent C-C formation with alkynes by chelation assistance. The judicious choice of the al-kynes electronic properties allowed the selective synthesis of double-insertion aromatic homologation or alkyne mono-annulation products by C-F/C-H activation. Based on the unambiguous crystallographic characterization of an unprecedented 9-membered nickelocyclic intermediate and extensive DFT studies, a plausible mechanistic rationale

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IQCC Forum: Autumn edition, Oct. 3, 16.00h

Tomorrow (3rd of October, 16h, Sala d’actes, edifice LEAR, Aulari Comú) will take place the Autumn edition of the IQCC Forum, a quarterly meeting-place where high-quality science will be discussed. The IQCC Forum gives the opportunity for PhD and postdoc members of the IQCC to present their work to a wide audience. This will lead

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Aerobic C–C and C–O bond formation reactions mediated by high-valent nickel species

Nickel complexes have been widely employed as catalysts in C–C and C–heteroatom bond formation reactions. While Ni(0), Ni(I), and Ni(II) intermediates are most relevant in these transformations, recently Ni(III) and Ni(IV) species have also been proposed to play a role in catalysis. Reported herein is the synthesis, detailed characterization, and reactivity of a series of

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