THE VERSATILITY OF K-10 AS SOLID SUPPORT IN ORGANIC REACTIONS.
DOI:
https://doi.org/10.5902/2179460X13156Abstract
Montmorillonite K- 10 is widely used in organic reactions, belongs to the class K- catalysts derived from a mineral aluminum hydrosilicate. K- 10 has a structure in the form of “sandwich “in which an octahedral layer (Al) is sandwiched between two tetrahedral (Si). The Montmorillonite, K10, has used as catalyst in organic reactions in processes where acids are used as catalysts Lewis or Brönsted. Another application is their use as solid support anchoring reagents such as Clayfen and Claycop oxidants, impregnated with metals such as Fe3 +, Zn 2 + , Co 2 +, used as a catalyst in condensation reactions in MCR 's and currently proline as bifunctional catalyst. It is worth noting the possibility of using the K10 reactions associated with various forms of energy, reflux in organic solvents in microwave or ultrasound and given the precepts of green chemistry in reactions without solvents. Several synthetic routes and interconversion of functional groups are focused as transesterification, halogenation, oxidation combined with the classic reactions of aromatic acylation and alkylation, Diels Alder and rearrangements leading heterocyclic systems such as Pyrazoles, Isoxazoles, Isoquinolines, Pyrazolones and Isoxazolonas . All these properties and applications highlight the versatility of the K-10 as solid support in organic reactions. Keywords: montmorillonite, solid support, K10, heterocyclic compounds, enamino compoundsDownloads
Downloads
Published
How to Cite
Issue
Section
License
To access the DECLARATION AND TRANSFER OF COPYRIGHT AUTHOR’S DECLARATION AND COPYRIGHT LICENSE click here.
Ethical Guidelines for Journal Publication
The Ciência e Natura journal is committed to ensuring ethics in publication and quality of articles.
Conformance to standards of ethical behavior is therefore expected of all parties involved: Authors, Editors, Reviewers, and the Publisher.
In particular,
Authors: Authors should present an objective discussion of the significance of research work as well as sufficient detail and references to permit others to replicate the experiments. Fraudulent or knowingly inaccurate statements constitute unethical behavior and are unacceptable. Review Articles should also be objective, comprehensive, and accurate accounts of the state of the art. The Authors should ensure that their work is entirely original works, and if the work and/or words of others have been used, this has been appropriately acknowledged. Plagiarism in all its forms constitutes unethical publishing behavior and is unacceptable. Submitting the same manuscript to more than one journal concurrently constitutes unethical publishing behavior and is unacceptable. Authors should not submit articles describing essentially the same research to more than one journal. The corresponding Author should ensure that there is a full consensus of all Co-authors in approving the final version of the paper and its submission for publication.
Editors: Editors should evaluate manuscripts exclusively on the basis of their academic merit. An Editor must not use unpublished information in the editor's own research without the express written consent of the Author. Editors should take reasonable responsive measures when ethical complaints have been presented concerning a submitted manuscript or published paper.
Reviewers: Any manuscripts received for review must be treated as confidential documents. Privileged information or ideas obtained through peer review must be kept confidential and not used for personal advantage. Reviewers should be conducted objectively, and observations should be formulated clearly with supporting arguments, so that Authors can use them for improving the paper. Any selected Reviewer who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should notify the Editor and excuse himself from the review process. Reviewers should not consider manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies, or institutions connected to the papers.
