& Mahmood Tajbakhsh email@example.com Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar 47416-95447, Iran Department of Medicinal Chemistry, Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran 123 30 A. Fallah et al. Keywords Heterogeneous catalyst Natural phosphate Fluorapatite Tetraketone Xanthene Introduction Solid catalysts are known as new alternatives to replace homogeneous catalysts due to advantages including less corrosive action, being easier to handle and separate, as well as being reusable and generating less amount of toxic wastes . Natural phosphate (NP) is readily available, cheap, nontoxic and a non-pollutant . NP and synthetic phosphates such as ﬂuorapatite (FAP, Ca (PO ) F ) or hydroxyapatite 10 4 6 2 (HAP, Ca (PO ) (OH) ) were used as efﬁcient catalysts for various organic 10 4 6 2 transformations, e.g. Knoevenagel condensation , transesteriﬁcation reaction , Michael addition of mercaptans to a,b-unsaturated carbonyl compounds , synthesis of 5-arylhydantoins , a-hydroxyphosphonates , and Suzuki coupling reactions . Tetraketone and xanthene derivatives are important classes of oxygen-containing heterocyclic compounds that have gained much attention owing to their numerous applications. They have exhibited
Research on Chemical Intermediates – Springer Journals
Published: Jun 15, 2016
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud