Results 141 to 150 of about 9,597,280 (150)

Three-Component Synthesis of Tetrahydrobenzo[b]pyrans Catalyzed by Sodium Cyclamate

HETEROCYCLES, 2022
Hamzeh Kiyani, Fatemeh Baghaie
openaire   +1 more source

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

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

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

Uncatalyzed Reactions in Aqueous Media: Three-Component, One-Pot, Clean Synthesis of Tetrahydrobenzo[b]pyran Derivatives

Australian Journal of Chemistry, 2007
The synthesis of various tetrahydrobenzo[b]pyran derivatives has been carried out by means of an uncatalyzed, three-component, one-pot clean condensation of aromatic aldehydes, reactive methylene compounds, and dimidone in aqueous medium. Simple workup, and mild and neutral conditions that give quantitative yields of products in pure form, are the ...
Sunita B. Bandgar, Babasaheb P. Bandgar, Balaji L. Korbad, Jalinder V. Totre, Sachin Patil   +4 more
openaire   +1 more source

Green Synthesis of Tetrahydrobenzo[b]Pyrans by Microwave Assisted Multi-Component One-Pot Reactions in PEG-400

Combinatorial Chemistry & High Throughput Screening, 2012
Polyethylene glycol is found to be a nontoxic and recyclable reaction medium for the microwave-assisted, multi-component one-pot reactions of aromatic aldehydes with ethyl-2-cyanoacetate and 1,3-cyclohexanedione or 5,5- dimethyl-1,3-cyclohexanedione in the presence of piperidine. This environmentally friendly microwave protocol offers ease of operation
Chun, Feng, Qiuyan, Wang, Cuifen, Lu, Guichun, Yang, Zuxing, Chen   +4 more
openaire   +2 more sources

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