Results 101 to 110 of about 209 (110)

Electrochemical synthesis of tetrahydrobenzo[b]pyran derivatives in deep eutectic solvents

Journal of Electroanalytical Chemistry, 2022
Eman O. Osman, Amr M. Mahmoud, Sally S. El-Mosallamy, Hala B. El-Nassan   +3 more
openaire   +1 more source

ChemInform Abstract: Cerium(III) Chloride Catalyzed One‐Pot Synthesis of Tetrahydrobenzo[b]pyrans

ChemInform, 2009
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Gowravaram Sabitha, K. Arundhathi, K. Sudhakar, B. S. Sastry, J. S. Yadav   +4 more
openaire   +1 more source

Triphenylphosphine-Catalyzed One-Pot Three Component Synthesis of Tetrahydrobenzo[b]Pyrans in Aqueous Medium

Letters in Organic Chemistry, 2013
A simple, efficient and ecofriendly procedure for the synthesis of tetrahydrobenzo[b]pyran derivatives using triphenylphosphine as catalyst under aqueous conditions has been developed. This new method has some advantages like the easy experimental protocol, shorter reaction time, higher yields and is benign for the environment with using water as ...
Ghalem, Wassima, Sedrati, Ramzy Hilal, Benloucif, Nadjiba, Berrée, Fabienne, Boumoud, Boudjemaa, Debache, Abdelmadjid   +5 more
openaire   +2 more sources

Kinetic Aspects of Tetrahydrobenzo[b]pyran Formation in the Presence of Fructose as a Green Catalyst: a Mechanistic Investigation

2016
The kinetics and mechanism of the reaction between benzaldehyde 1, malononitrile 2 and dimedone 3 in a mixture of ethanol and water as solvents in the presence of fructose as a biodegradable catalyst has been studied by the spectroscopic method (UV-Vis spectrophotometry method).
Habibi-khorassani, Sayeydmosatfa, Shahraki, Mehdi, Ebraiimi, Ali, Pourpanah, Sayyede Shadfar   +3 more
openaire   +1 more source

β-Cyclodextrin as an efficient catalyst for the one-pot synthesis of tetrahydrobenzo[b]pyran derivatives in water

Research on Chemical Intermediates, 2015
Various 4H-benzo[b]pyran derivatives were synthesized via a one-pot three-component condensation of arylaldehyde, malononitrile and dimedone in water using β-cyclodextrin (β-CD) as an efficient catalyst. This method provides several advantages, including mild reaction conditions, operational simplicity, high yields and minimal pollution of the ...
Jun Lu, Xue-wen Fu, Ge Zhang, Chun Wang
openaire   +1 more source

Modified Agro Waste-Derived Nano-silica for Synthesizing Tetrahydrobenzo[b]pyrans

Catalysis Surveys from Asia, 2023
Pouya Taheri, Mahmood Tajbakhsh, Zari Fallah   +2 more
openaire   +1 more source

Mechanistic Studies on the Three Component Synthesis of Tetrahydrobenzo[ b]pyran Catalyzed by Agar

Current Organocatalysis, 2015
Osman Asheri, Sayyed Mostafa Habibi-Khorassani, Mehdi Shahraki   +2 more
openaire   +1 more source

Facile and Efficient Access to Tetrahydrobenzo[b]pyrans Catalyzed by N,N-Dimethylbenzylamine

HETEROCYCLES, 2016
Hamzeh Kiyani, Mozhgan Sadat Jalali
openaire   +1 more source

Silver-Decorated Nanocatalyst for Sustainable Development of Tetrahydrobenzo[b]Pyran Derivatives by Heterocyclization

Chemistry Africa
K. S. Patil, H. T. Soundade, P. R. Kharade, K. N. Alasundkar, S. T. Mane, D. G. Kanase   +5 more
openaire   +1 more source

One-Pot Synthesis of Tetrahydrobenzo-b-pyran Derivatives in Aqueous Media

有机化学, 2004
openaire   +1 more source