Ball milling for the quantitative and specific solvent-free Knoevenagel condensation + Michael addition cascade in the synthesis of various 2-amino-4-aryl-3-cyano-4H-chromenes without heating

3-Amino-1-phenyl-1H-benzo[f]chromene-2-carbonitrile

(2013) Mehmet Akkurt et al.   ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE

Mechanochemical organic synthesis

(2013) Guan-Wu Wang   CHEMICAL SOCIETY REVIEWS

Tungstic acid functionalized mesoporous SBA-15: A novel heterogeneous catalyst for facile one-pot synthesis of 2-amino-4H-chromenes in aqueous medium

(2013) Sudipta K. Kundu et al.   DALTON TRANSACTIONS

Heterogeneous ditopic ZnFe2O4catalyzed synthesis of 4H-pyrans: further conversion to 1,4-DHPs and report of functional group interconversion from amide to ester

(2013) Paramita Das et al.   GREEN CHEMISTRY

Synthesis and in vitro microbiological evaluation of novel series of 8-hydroxy-2-(2-oxo-2H-chromen-3-yl)-5-phenyl-3H-chromeno [2,3-d]pyrimidin-4(5H)-one derivatives catalyzed by reusable silica-bonded N-propylpiperazine sulfamic acid

(2013) M. Ghashang et al.   RESEARCH ON CHEMICAL INTERMEDIATES

Water dispersed magnetic nanoparticles (H2O-DMNPs) of γ-Fe2O3 for multicomponent coupling reactions: a green, single-pot technique for the synthesis of tetrahydro-4H-chromenes and hexahydroquinoline carboxylates

(2013) Sadegh Rostamnia et al.   TETRAHEDRON LETTERS

Meglumine: A Novel and Efficient Catalyst for One-Pot, Three-Component Combinatorial Synthesis of Functionalized 2-Amino-4H-pyrans

(2013) Rui-Yun Guo et al.   ACS Combinatorial Science

A benign synthesis of 2-amino-4H-chromene in aqueous medium using hydrotalcite (HT) as a heterogeneous base catalyst

(2013) Sandip R. Kale et al.   Catalysis Science & Technology

Phenylboronic acid as an efficient and convenient catalyst for a three-component synthesis of tetrahydrobenzo[b]pyrans

(2012) Sara Nemouchi et al.   COMPTES RENDUS CHIMIE

Glycerol as a biodegradable and reusable promoting medium for the catalyst-free one-pot three component synthesis of 4H-pyrans

(2012) Hamid Reza Safaei et al.   GREEN CHEMISTRY

Practical and Green Protocol for the Synthesis of Substituted 4H-Chromenes Using Room Temperature Ionic Liquid Choline Chloride-Urea

(2012) C. N. Revanna et al.   JOURNAL OF HETEROCYCLIC CHEMISTRY

Potassium phthalimide-N-oxyl: a novel, efficient, and simple organocatalyst for the one-pot three-component synthesis of various 2-amino-4H-chromene derivatives in water

(2012) Mohammad G. Dekamin et al.   TETRAHEDRON

Efficient organocatalytic asymmetric synthesis of 2-amino-4H-chromene-3-carbonitrile derivatives

(2012) Yu Gao et al.   TETRAHEDRON-ASYMMETRY

Ball milling in organic synthesis: solutions and challenges

(2011) Achim Stolle et al.   CHEMICAL SOCIETY REVIEWS

A Recyclable and Highly Effective ZnO-beta Zeolite as a Catalyst for One-pot Three-Component Synthesis of Tetrahydrobenzo[b]pyrans

(2011) Santosh Shriram Katkar et al.   CHINESE JOURNAL OF CHEMISTRY

An efficient protocol for synthesis of tetrahydrobenzo[b]pyrans using amino functionalized ionic liquid

(2011) P.P. Salvi et al.   COMPTES RENDUS CHIMIE

Reactive milling with metals for environmentally benign sustainable production

(2011) G. Kaupp   CRYSTENGCOMM

One-Pot Enantioselective Synthesis of Functionalized Pyranocoumarins and 2-Amino-4H-chromenes: Discovery of a Type of Potent Antibacterial Agent

(2011) Gen Zhang et al.   JOURNAL OF ORGANIC CHEMISTRY

1,4-Diazabicyclo[2.2.2]octane as an Efficient Catalyst for a Clean, One-Pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives via Multicomponent Reaction in Aqueous Media

(2011) Daryoush Tahmassebi et al.   SYNTHETIC COMMUNICATIONS

Caro's Acid–Silica Gel: An Efficient and Versatile Catalyst for the One-Pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives

(2011) Hossein Abdi Oskooie et al.   SYNTHETIC COMMUNICATIONS

One-pot synthesis of tetrahydrochromene derivatives catalyzed by lipase

(2011) Jiang-Cheng Xu et al.   TETRAHEDRON

One-pot three-component reaction for the synthesis of pyran annulated heterocyclic compounds using DMAP as a catalyst

(2011) Abu T. Khan et al.   TETRAHEDRON LETTERS

An efficient, multicomponent approach for solvent-free synthesis of 2-amino-4H-chromene scaffold

(2010) M. Reza Naimi-Jamal et al.   MOLECULAR DIVERSITY

Kneading Ball-Milling and Stoichiometric Melts for the Quantitative Derivatization of Carbonyl Compounds with Gas-Solid Recovery

(2009) Javad Mokhtari et al.   ChemSusChem

Solvent-free one-pot approach for synthesis of substituted 2-aminochromenes

(2009) Dong Zhou et al.   JOURNAL OF HETEROCYCLIC CHEMISTRY

Mechanochemical Solvent-Free and Catalyst-Free One-Pot Synthesis of Pyrano[2,3-d]Pyrimidine-2,4(1H,3H)-Diones with Quantitative Yields

(2009) Sara Mashkouri et al.   MOLECULES

CeCl3·7H2O-Catalyzed One-Pot Synthesis of Hantzsch 1,4-Dihydropyridines at Room Temperature

(2009) Gowravaram Sabitha et al.   SYNTHETIC COMMUNICATIONS

Sodium stearate-catalyzed multicomponent reactions for efficient synthesis of spirooxindoles in aqueous micellar media

(2009) Li-Min Wang et al.   TETRAHEDRON

High Surface Area MgO as a Highly Effective Heterogeneous Base Catalyst for Three-Component Synthesis of Tetrahydrobenzopyran and 3,4-Dihydropyrano[c]chromene Derivatives in Aqueous Media

(2008) Mohammad Seifi et al.   CATALYSIS LETTERS

Studies on the solvent-free and waste-free Knoevenagel condensation

(2008) Ronald Trotzki et al.   GREEN CHEMISTRY

Enantioselective synthesis of naphthopyran derivatives catalyzed by bifunctional thiourea-tertiary amines

(2008) Xiao-Sheng Wang et al.   TETRAHEDRON-ASYMMETRY

Fluoride ion-catalyzed conjugate addition for easy synthesis of 3-sulfanylpropionic acid from thiol and α,β-unsaturated carboxylic acid

(2007) Shijay Gao et al.   TETRAHEDRON