Recent advances in the asymmetric synthesis of pharmacology-relevant nitrogen heterocycles via stereoselective aza-Michael reactions

MG Vinogradov, OV Turova, SG Zlotin - Organic & Biomolecular …, 2019 - pubs.rsc.org
The prevalence of nitrogen containing heterocycles in natural products and pharmaceuticals
is a doubtless fact. In this review, recent applications of a stereoselective aza-Michael …

Synthesis of polysubstituted pyrroles via isocyanide-based multicomponent reactions as an efficient synthesis tool

MT Nazeri, A Shaabani - New Journal of Chemistry, 2021 - pubs.rsc.org
Pyrroles are among the most privileged and influential small N-heterocycles at the core of
many commercial drugs, biological composition, natural compounds, agrochemicals, and …

Multicomponent cascade reaction of 3-formylchromones: Highly selective synthesis of functionalized 9-azabicyclo [3.3. 1] nonane derivatives

YG Duan, XM Hu, XL Cao, KH Lv, SJ Yan - Organic Letters, 2021 - ACS Publications
A novel protocol for the preparation of functionalized 9-azabicyclo [3.3. 1] nonane (ABCN)
derivatives from 3-formylchromones, enaminones, and heterocyclic ketene aminals (HKAs) …

Diastereo‐and Enantioselective Silver‐Catalyzed [3+ 3] Cycloaddition and Kinetic Resolution of Azomethine Imines with Activated Isocyanides

LF Tao, S Zhang, F Huang, WT Wang… - Angewandte Chemie …, 2022 - Wiley Online Library
In contrast to the well‐established [3+ 2] cycloaddition reactions, the catalytic
enantioselective [3+ n](n≥ 3) cycloaddition reaction of activated isocyanides for the …

Multi-component cascade reaction of 3-formylchromones: highly selective synthesis of 4, 5-dihydro-[4, 5′-bipyrimidin]-6 (1 H)-one derivatives

L Chen, R Huang, XH Yun, TH Hao… - Chemical …, 2021 - pubs.rsc.org
A novel protocol for the construction of highly functionalized bipyrimidine derivatives 4 and 5
from 3-formyl-chromones, ethyl 2-(pyridine-2-yl) acetate derivatives, and amidine …

Catalytic atroposelective dynamic kinetic resolution of biaryl lactones with activated isocyanides

L Qian, LF Tao, WT Wang, E Jameel, ZH Luo… - Organic …, 2021 - ACS Publications
We report herein an unprecedented atroposelective dynamic kinetic resolution of
Bringmann's lactones with C-nucleophiles. By the use of activated isocyanides as the …

Cooperative catalysis-enabled C–N bond cleavage of biaryl lactams with activated isocyanides

WT Wang, S Zhang, LF Tao, ZQ Pan, L Qian… - Chemical …, 2022 - pubs.rsc.org
The catalytic reaction of biaryl lactams with activated isocyanides is reported for the first time.
By employing a cooperative catalytic system, oxazole-containing axially chiral biaryl anilines …

Cu-Catalyzed decarboxylative annulation of N-substituted glycines with 3-formylchromones: synthesis of functionalized chromeno [2, 3-b] pyrrol-4 (1 H)-ones

L Chen, YD Li, Y Lv, ZH Lu, SJ Yan - Chemical Communications, 2022 - pubs.rsc.org
A novel protocol was developed for preparing functionalized chromeno [2, 3-b] pyrrol-4 (1H)-
ones 3 (CMPOs) from 3-formylchromones with N-substituted glycine derivatives. The method …

Three-Component Site-Selective Synthesis of Highly Substituted 5H-Chromeno-[4,3-b]pyridines

CH Zhang, R Huang, XM Hu, J Lin… - The Journal of Organic …, 2018 - ACS Publications
An efficient and concise one-pot procedure was developed based on a cascade reaction of
3-formylchromones 1 and different types of 1, 1-enediamines (EDAMs) 2 with different …

An approach towards the synthesis of novel fused nitrogen tricyclic heterocyclic scaffolds via GBB reaction

SG Balwe, YT Jeong - Organic & biomolecular chemistry, 2018 - pubs.rsc.org
A concise and efficient one-pot synthesis of novel N-fused tricyclic derivatives has been
developed by using the Groebke–Blackburn–Bienaymé (GBB) reaction, which involved the …