Isocoumarins and 3, 4-dihydroisocoumarins, amazing natural products: a review

A Saddiqa, O ÇAKMAK… - Turkish Journal of …, 2017 - journals.tubitak.gov.tr
The isocoumarins are naturally occurring lactones that constitute an important class of
natural products exhibiting an array of biological activities. A wide variety of these lactones …

Ruthenium (II)‐Catalyzed Homocoupling of Weakly Coordinating Sulfoxonium Ylides via C− H Activation/Annulations: Synthesis of Functionalized Isocoumarins

MD Zhou, Z Peng, H Wang, ZH Wang… - … Synthesis & Catalysis, 2019 - Wiley Online Library
Homocoupling of weakly coordinating sulfoxonium ylides was accomplished via ruthenium
(II) catalyzed C− H activation process. This strategy provides a convenient, efficient and step …

Palladium-catalyzed sequential nucleophilic addition/oxidative annulation of bromoalkynes with benzoic acids to construct functionalized isocoumarins

G Jiang, JX Li, C Zhu, W Wu, H Jiang - Organic letters, 2017 - ACS Publications
An efficient and robust protocol for the preparation of 3-substituted isocoumarins via
palladium-catalyzed nucleophilic addition/oxidative annulation of bromoalkynes with …

Synthesis and immunomodulatory properties of selected oxazolone derivatives

MA Mesaik, S Rahat, KM Khan, MI Choudhary… - Bioorganic & medicinal …, 2004 - Elsevier
Eleven oxazolone derivatives were synthesized and characterized by 1H NMR, EI, IR and
UV spectroscopic and CHN analysis. Three compounds, 4-[(E)-(4-nitrophenyl) methylidene] …

Studies on a chlorogenic acid-producing endophytic fungi isolated from Eucommia ulmoides Oliver

X Chen, X Sang, S Li, S Zhang… - Journal of Industrial …, 2010 - academic.oup.com
Eucommia ulmoides Oliver is a traditional medicinal plant of China, and it is one of the main
sources of chlorogenic acid. Chlorogenic acid is an ester of caffeic acid, quinic acid, and a …

Palladium-Catalyzed Synthesis of Isocoumarins and Phthalides via tert-Butyl Isocyanide Insertion

XD Fei, ZY Ge, T Tang, YM Zhu… - The Journal of Organic …, 2012 - ACS Publications
A novel and highly efficient strategy for the synthesis of isocoumarins and phthalides
through a palladium (0)-catalyzed reaction incorporating tert-butyl isocyanide has been …

In vitro cytotoxic, antibacterial, antifungal and urease inhibitory activities of some N4- substituted isatin-3-thiosemicarbazones

H Pervez, MS Iqbal, MY Tahir, FH Nasim… - Journal of Enzyme …, 2008 - Taylor & Francis
A series of 15 previously reported N4-substituted isatin-3-thiosemicarbazones 3a-o has
been screened for cytotoxic, antibacterial, antifungal and urease inhibitory activities …

Ru (II)-Catalyzed C–H bond activation/annulation of N-iminopyridinium ylides with sulfoxonium ylides

X Li, D Li, X Zhang - Organic & Biomolecular Chemistry, 2022 - pubs.rsc.org
A Ru (II)-catalyzed C–H bond activation/annulation of N-iminopyridinium ylides with
sulfoxonium ylides has been developed for the synthesis of diverse functionalized …

Metal-free synthesis of 4-chloroisocoumarins by TMSCl-catalyzed NCS-induced chlorinative annulation of 2-alkynylaryloate esters

K Norseeda, N Chaisan… - The Journal of …, 2019 - ACS Publications
4-Chloroisocoumarins can be conveniently prepared from 2-alkynylaryloate esters via the
activation of alkynes by electrophilic chlorine, generated in situ from N-chlorosuccinimide …

Metal‐Free Synthesis of 4‐Bromoisocoumarins through Brominative Annulation of 2‐Alkynylaryloate Esters Using In Situ Generated Transient Bromoiodane

M Sodoor, S Selvakumar - European Journal of Organic …, 2023 - Wiley Online Library
Herein, we report a facile and proficient protocol for the synthesis of 4‐bromoisocoumarins
through brominative annulation of 2‐alkynylaryloate esters with in situ generated …