Five-membered carbocycles are highly prevalent motifs in natural products and pharmaceutical drugs. Finding routes towards these moieties has been an attractive area of …
BM Yang, PJ Cai, YQ Tu, ZX Yu, ZM Chen… - Journal of the …, 2015 - ACS Publications
A novel organocatalytic asymmetric tandem Nazarov cyclization/semipinacol rearrangement reaction using “unactivated” substrates has been developed, generating a series of chiral …
MJ Di Grandi - Organic & Biomolecular Chemistry, 2014 - pubs.rsc.org
The Nazarov cyclization, a well-known method for the formation of cyclopentenones, mechanistically involves the 4π electrocyclization of a 1, 4-pentadienyl cation, generated …
A cascade ring opening of 3-ethoxy cyclobutanones followed by a double cyclization strategy has been developed via Brønsted acid catalysis. A range of 2, 8-dioxabicyclo [3.3 …
T Chen, F Gong, S Nagaraju, J Liu, S Yang… - Organic …, 2022 - ACS Publications
The Nazarov cyclization has been established as a powerful tool in constructing cyclopentenone skeletons. In sharp contrast, oxa-Nazarov cyclization that affords …
L Liu, L Wei, Y Lu, J Zhang - Chemistry–A European Journal, 2010 - academia.edu
The fused bicyclic skeleton is an important subunit in many natural products, pharmaceuticals, and organic building blocks in organic synthesis (some examples are …
DJ Schatz, Y Kwon, TW Scully… - The Journal of Organic …, 2016 - ACS Publications
The generation of dibrominated cyclopentenones via an interrupted Nazarov cyclization is reported. The installation of two bromine atoms occurs at the α and α′ positions of the …
AS Marques, T Duhail, J Marrot… - Angewandte …, 2019 - Wiley Online Library
We report an unprecedented domino polycyclization from readily available 2, 4‐dienals and cyclic α, β‐unsaturated imines that is initiated by an iso‐Nazarov reaction. This Brønsted …
Y Kwon, O Scadeng, R McDonald… - Chemical …, 2014 - pubs.rsc.org
Trimethylaluminum and molecular oxygen are used in tandem to interrupt the Nazarov cyclization. α-Hydroxycyclopentanones are produced in moderate to good yield as a mixture …