Divergent synthesis of chiral heterocycles via sequencing of enantioselective three-component reactions and one-pot subsequent cyclization reactions
作者:Min Tang、Dong Xing、Haoxi Huang、Wenhao Hu
DOI:10.1039/c5cc01979f
日期:——
A highly efficient sequencing of enantioselective three-component reactions with a variety of one-pot subsequent cyclization reactions was developed.
利用一种高效的三组分选择性合成顺序,开发了一系列一锅法后续环化反应。
Rh
<sup>II</sup>
‐Catalyzed De‐symmetrization of Ethane‐1,2‐dithiol and Propane‐1,3‐dithiol Yields Metallo‐β‐lactamase Inhibitors
作者:Mikhail Krasavin、Daniil Zhukovsky、Igor Solovyev、Darina Barkhatova、Dmitry Dar'in、Denia Frank、Giada Martinelli、Lilia Weizel、Anna Proschak、Marco Rotter、Jan S. Kramer、Steffen Brunst、Thomas A. Wichelhaus、Ewgenij Proschak
DOI:10.1002/cmdc.202100344
日期:2021.11.19
Thiols are potent inhibitors of metallo-β-lactamases, major resistance factors in Gram-negative bacteria. Rh(II)-based coupling procedure of dithiols to diazo building blocks was adopted for diversity-oriented synthesis of a library of metallo-β-lactamase inhibitors. Most potent compounds displayed nanomolar potency and activity in multiresistent clinical isolates.
Iron‐Catalysed Carbene Transfer to Isocyanides as a Platform for Heterocycle Synthesis
作者:Thomas R. Roose、H. Daniel Preschel、Helena Mayo Tejedor、Jasper C. Roozee、Trevor A. Hamlin、Bert U. W. Maes、Eelco Ruijter、Romano V. A. Orru
DOI:10.1002/chem.202203074
日期:2023.2.10
The readily available low-valent iron complex [Fe(CO)3NO]− catalyzes the efficient transfer of carbenes to isocyanides. The resulting ketenimines undergo in situ cyclocondensation with various bisnucleophiles to give a broad range of medicinally relevant heterocycles. A plausible mechanism for the carbene transfer is proposed based on DFT calculations.
Dearomative Spirocyclization of Tryptamine-Derived Isocyanides via Iron-Catalyzed Carbene Transfer
作者:Thomas R. Roose、Finn McSorley、Bryan Groenhuijzen、Jordy M. Saya、Bert U. W. Maes、Romano V. A. Orrù、Eelco Ruijter
DOI:10.1021/acs.joc.3c02160
日期:2023.12.15
Tryptamine-derived isocyanides are valuable building blocks in the construction of spirocyclic indolenines and indolines via dearomatization of the indole moiety. We report the Bu4N[Fe(CO)3NO]-catalyzed carbene transfer of α-diazo esters to 3-(2-isocyanoethyl)indoles, leading to ketenimine intermediates that undergo spontaneous dearomative spirocyclization. The utility of this iron-catalyzed carbene