Xanthones from fungi, lichens, and bacteria: the natural products and their synthesis

KS Masters, S Bräse - Chemical reviews, 2012 - ACS Publications
In 1961 Roberts submitted a comprehensive review in which he described the 16 naturally
occurring xanthones identified to that date, of which 5 were of fungal or lichenoid origin. 2 …

New developments of the principle of vinylogy as applied to π-extended enolate-type donor systems

C Curti, L Battistini, A Sartori, F Zanardi - Chemical reviews, 2020 - ACS Publications
The principle of vinylogy states that the electronic effects of a functional group in a molecule
are possibly transmitted to a distal position through interposed conjugated multiple bonds …

Asymmetric Synthesis of Nidulalin A and Nidulaxanthone A: Selective Carbonyl Desaturation Using an Oxoammonium Salt

K Ji, RP Johnson, J McNeely, M Al Faruk… - Journal of the …, 2024 - ACS Publications
Nidulaxanthone A is a dimeric, dihydroxanthone natural product that was isolated in 2020
from Aspergillus sp. Structurally, the compound features an unprecedented heptacyclic …

Recent advances of chromone-based reactants in the catalytic asymmetric domino annulation reaction

M Zhang, Y Gong, W Zhou, Y Zhou… - Organic Chemistry …, 2021 - pubs.rsc.org
Chiral polycyclic chromanones are important heterocyclic frameworks that constitute the
core structures of many natural products and bioactive molecules. As starting materials, the …

Deconjugated butenolide: a versatile building block for asymmetric catalysis

AR Choudhury, S Mukherjee - Chemical Society Reviews, 2020 - pubs.rsc.org
The wide abundance of γ-lactones in natural products and bioactive targets calls for suitable
building blocks for their enantioselective synthesis. β, γ-Unsaturated γ-butenolides …

Direct enantio-and diastereoselective vinylogous addition of butenolides to chromones catalyzed by Zn-prophenol

BM Trost, E Gnanamani, CA Kalnmals… - Journal of the …, 2019 - ACS Publications
We report the first enantio-and diastereoselective 1, 4-addition of butenolides to chromones.
Both α, β-and β, γ-butenolide nucleophiles are compatible with the Zn-ProPhenol catalyst …

Recent advancements in the use of Bobbitt's salt and 4-acetamidoTEMPO

JM Bray, SM Stephens, SM Weierbach… - Chemical …, 2023 - pubs.rsc.org
Recent advances in synthetic methodologies for selective, oxidative transformations using
Bobbitt's salt (4-acetamido-2, 2, 6, 6-tetramethyl-1-oxopiperidinium tetrafluoroborate, 1) and …

Atropselective syntheses of (−) and (+) rugulotrosin A utilizing point-to-axial chirality transfer

T Qin, SL Skraba-Joiner, ZG Khalil, RP Johnson… - Nature …, 2015 - nature.com
Chiral, dimeric natural products containing complex structures and interesting biological
properties have inspired chemists and biologists for decades. A seven-step total synthesis of …

Versixanthones A–F, Cytotoxic Xanthone–Chromanone Dimers from the Marine-Derived Fungus Aspergillus versicolor HDN1009

G Wu, G Yu, T Kurtan, A Mandi, J Peng… - Journal of natural …, 2015 - ACS Publications
Six unusual xanthone–chromanone dimers, versixanthones A–F (1–6), featuring different
formal linkages of tetrahydroxanthone and 2, 2-disubstituted chroman-4-one monomers …

Organocatalyzed, photoredox heteroarylation of 2-trifluoroboratochromanones via C–H functionalization

JK Matsui, GA Molander - Organic letters, 2017 - ACS Publications
Heteroarylation via C–H functionalization has been synthetically challenging, but such
transformations represent an atom-economical and highly convergent route toward complex …