Diethylamine-catalyzed environmentally benign synthesis of 1-oxo-hexahydroxanthenes and bis-coumarins at ambient temperature

Tris-hydroxymethylaminomethane (THAM): a novel organocatalyst for a environmentally benign synthesis of medicinally important tetrahydrobenzo[b]pyrans and pyran-annulated heterocycles

(2015) Kapil S. Pandit et al.   NEW JOURNAL OF CHEMISTRY

Multicomponent Synthesis of Functionalized Tetrahydroacridinones: Insights into a Mechanistic Route

(2015) Tsai-Wen Chung et al.   ORGANIC LETTERS

Silica supported sodium hydrogen sulfate and Indion 190 resin: An efficient and heterogeneous catalysts for facile synthesis of bis-(4-hydroxycoumarin-3-yl) methanes

(2015) Vikas Padalkar et al.   Journal of Saudi Chemical Society

A simple, economical, and environmentally benign protocol for the synthesis of 2-amino-3,5-dicarbonitrile-6-sulfanylpyridines at ambient temperature

(2014) Uday V. Desai et al.   Green Chemistry Letters and Reviews

Synthesis and application of a novel strong and stable supported ionic liquid catalyst with both Lewis and Brønsted acid sites

(2013) Kaveh Parvanak Boroujeni et al.   CATALYSIS COMMUNICATIONS

From Waste Biomass to Solid Support: Lignosulfonate as a Cost-Effective and Renewable Supporting Material for Catalysis

(2013) Shaohuan Sun et al.   CHEMISTRY-A EUROPEAN JOURNAL

Diethylamine: A smart organocatalyst in eco-safe and diastereoselective synthesis of medicinally privileged 2-amino-4H-chromenes at ambient temperature

(2013) Makarand A. Kulkarni et al.   COMPTES RENDUS CHIMIE

Recent developments in asymmetric multicomponent reactions

(2012) Corien de Graaff et al.   CHEMICAL SOCIETY REVIEWS

Tris(hydrogensulfato) boron as a solid heterogeneous catalyst for the rapid synthesis of α,α′-benzylidene bis(4-hydroxycoumarin) derivatives

(2012) Zahed Karimi-Jaberi et al.   CHINESE CHEMICAL LETTERS

A practical and highly efficient protocol for multicomponent synthesis of β-phosphonomalononitriles and 2-amino-4H-chromen-4-yl phosphonates using diethylamine as a novel organocatalyst

(2012) M.A. Kulkarni et al.   COMPTES RENDUS CHIMIE

Mechanistic approach for expeditious and solvent-free synthesis of α-hydroxy phosphonates using potassium phosphate as catalyst

(2012) Makarand A. Kulkarni et al.   COMPTES RENDUS CHIMIE

Novel SO3H-Functionalized Ionic Liquids Based on Benzimidazolium Cation: Efficient and Recyclable Catalysts for One-Pot Synthesis of Biscoumarin Derivatives

(2011) Wei Li et al.   CATALYSIS LETTERS

Fluorescent Chemosensors Based on Spiroring-Opening of Xanthenes and Related Derivatives

(2011) Xiaoqiang Chen et al.   CHEMICAL REVIEWS

An unexpected tetracyclic product isolated during the synthesis of biscoumarins catalyzed by [MIM(CH2)4SO3H][HSO4]: Characterization and X-ray crystal structure of 7-(2-hydroxy-4-oxo-4H-chromen-3-yl)-6H,7H-chromeno[4,3-b]chromen-6-one

(2011) Niloofar Tavakoli-Hoseini et al.   JOURNAL OF MOLECULAR LIQUIDS

Synthesis of biscoumarin derivatives by the reaction of aldehydes and 4-hydroxycoumarin using ruthenium (III) chloride hydrate as a versatile homogeneous catalyst

(2011) Khalil Tabatabaeian et al.   JOURNAL OF THE SERBIAN CHEMICAL SOCIETY

Cellulose Sulfuric Acid: An Efficient Biodegradable and Recyclable Solid Acid Catalyst for the Synthesis of 1-Oxo-hexahydroxanthene

(2011) B. Suresh Kuarm et al.   SYNTHETIC COMMUNICATIONS

A green protocol for catalyst-free synthesis of 1-oxo-hexahydroxanthenes in aqueous medium

(2010) D.M. Pore et al.   COMPTES RENDUS CHIMIE

Multicomponent Synthesis of Cyclic Frameworks on Knoevenagel-Initiated Domino Reactions

(2010) Yi-Feng Han et al.   CURRENT ORGANIC CHEMISTRY

Synthesis and in vitro study of 14-aryl-14H-dibenzo[a.j]xanthenes as cytotoxic agents

(2009) Asish K. Bhattacharya et al.   BIOORGANIC & MEDICINAL CHEMISTRY LETTERS

Glycerol as a promoting medium for electrophilic activation of aldehydes: catalyst-free synthesis of di(indolyl)methanes, xanthene-1,8(2H)-diones and 1-oxo-hexahydroxanthenes

(2009) Fei He et al.   GREEN CHEMISTRY

Synthesis of tetraketones in water and under catalyst-free conditions

(2009) Jian-Jun Yu et al.   GREEN CHEMISTRY

Rapid Synthesis, Screening, and Identification of Xanthone- and Xanthene-Based Fluorophores Using Click Chemistry

(2009) Junqi Li et al.   ORGANIC LETTERS

Catalyst-Free Synthesis of α,α-bis(4-Hydroxycoumarin-3-yl)toluene in Aqueous Media Under Microwave Irradiation

(2009) Gui-Xia Gong et al.   SYNTHETIC COMMUNICATIONS

Tetrabutylammonium bromide (TBAB): a neutral and efficient catalyst for the synthesis of biscoumarin and 3,4-dihydropyrano[c]chromene derivatives in water and solvent-free conditions

(2009) Jitender M. Khurana et al.   TETRAHEDRON LETTERS

3D-QSAR CoMFA studies on bis-coumarine analogues as urease inhibitors: A strategic design in anti-urease agents

(2008) Zaheer-ul-Haq et al.   BIOORGANIC & MEDICINAL CHEMISTRY

(9S)-9-(2-Hydroxy-4,4-dimethyl-6-oxo-1-cyclohexen-1-yl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-xanthen-1-one, a Selective and Orally Active Neuropeptide Y Y5 Receptor Antagonist

(2008) Nagaaki Sato et al.   JOURNAL OF MEDICINAL CHEMISTRY

CeCl3·7H2O-Catalyzed Synthesis of 1-Oxo-hexahydroxanthene Derivatives in Aqueous Media

(2008) Gowravaram Sabitha et al.   SYNTHETIC COMMUNICATIONS

2,4,6-Trichloro-1,3,5-triazine as an Efficient Catalyst for Synthesis of Benzopyran Derivatives under Solvent-Free Conditions

(2008) Peng Zhang et al.   SYNTHETIC COMMUNICATIONS

Synthesis of Biscoumarins from 4-Hydroxycoumarin and Aromatic Aldehydes—A Comparative Assessment of Percentage Yield Under Thermal and Microwave-Assisted Conditions

(2008) Saima Qadir et al.   SYNTHETIC COMMUNICATIONS