Organocatalysis in inert C–H bond functionalization

Y Qin, L Zhu, S Luo - Chemical reviews, 2017 - ACS Publications
As two coexisting and fast-growing research fields in modern synthetic chemistry, the
merging of organocatalysis and C–H bond functionalization is well foreseeable, and the joint …

Recent advances in the application of Diels–Alder reactions involving o-quinodimethanes, aza-o-quinone methides and o-quinone methides in natural product total …

B Yang, S Gao - Chemical Society Reviews, 2018 - pubs.rsc.org
In recent decades, transient and highly reactive ortho-quinodimethanes (o-QDMs), ortho-
quinone methides (o-QMs) and aza-ortho-quinone methides (aza-o-QMs) have attracted …

Advancements in the Preparation of 4H‐Chromenes: An Overview

Z Wen, KC Yang, JF Deng… - Advanced Synthesis & …, 2023 - Wiley Online Library
Functionalized 4H‐chromenes represent one class of the most important structural scaffolds
in both synthetic and medicinal chemistry. They often appear in an arrange of biological …

Chemoselective oxidative generation of ortho-quinone methides and tandem transformations

M Uyanik, K Nishioka, R Kondo, K Ishihara - Nature Chemistry, 2020 - nature.com
Abstract ortho-Quinone methides are useful transient synthetic intermediates in organic
synthesis. These species are most often generated in situ by the acid-or base-mediated …

Mechanochemical synthesis of azo-linked 2-amino-4H-chromene derivatives using Fe3O4@ SiO2@ KIT-6-NH2@ Schiff-base complex nanoparticles

M Nikpassand, A Keyhani, LZ Fekri… - Journal of Molecular …, 2022 - Elsevier
An efficient, solvent-free, and environmentally benign route via mechanochemical means is
described for the synthesis of azo-linked 2-amino-4H-chromene derivatives. The four …

Catalytic Asymmetric [4+1] Cyclization of ortho‐Quinone Methides with 3‐Chlorooxindoles

XL Jiang, SJ Liu, YQ Gu, GJ Mei… - Advanced Synthesis & …, 2017 - Wiley Online Library
In this work, we established catalytic asymmetric [4+ 1] cyclization of ortho‐quinone
methides (o‐QMs) with 3‐chlorooxindoles and a catalytic asymmetric domino oxidation/[4+ …

ortho-Quinone methides as key intermediates in cascade heterocyclizations

DV Osipov, VA Osyanin… - Russian Chemical …, 2017 - iopscience.iop.org
Abstract Development of new methods of heterocyclic synthesis is still a topical issue. In this
connection, the trend related to the use of highly reactive o-quinone methides for the …

Phosphine-Catalyzed Enantioselective [4 + 2] Annulation of o-Quinone Methides with Allene Ketones

Z Wang, T Wang, W Yao, Y Lu - Organic letters, 2017 - ACS Publications
A phosphine-catalyzed highly enantioselective [4+ 2] annulation between ortho-quinone
methides and allene ketones has been developed. The reported method led to the formation …

Regioselective α‐Addition of Deconjugated Butenolides: Enantioselective Synthesis of Dihydrocoumarins

B Wu, Z Yu, X Gao, Y Lan… - Angewandte Chemie …, 2017 - Wiley Online Library
The enantioselective α‐addition of deconjugated butenolides has rarely been exploited, in
contrast to the well‐studied γ‐addition of deconjugated butenolides. In this study, an …

Recent Advances in Organocatalytic Asymmetric Cycloaddition Reactions Through Ortho‐Quinone Methide Scaffolds

YH Ma, XY He, QQ Yang, A Boucherif… - Asian Journal of …, 2021 - Wiley Online Library
This review summarizes the very recent advances in organocatalytic asymmetric
cycloaddition reactions involving ortho‐quinone methides (o‐QMs), a family of versatile …