Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
An in depth study of the formation of new tetrathiafulvalene derivatives from 1,8-diketones
Date
2003-10-06
Author
Turksoy, F
Wallis, JD
Tunca, U
Ozturk, T
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
183
views
0
downloads
Cite This
A detailed study of the reactions of phosphorus pentasulfide and Lawesson's reagent with a series of 4,5-bis(RCOCHS)-1,3-dithiole-2-thiones (R-Ph, 4-MeOC6H4, 4-Br C6H4, Me) has been carried out. These reactions lead to fusion of either an unsaturated 1,4-dithiin ring or a thiophene to the dithiole; the former in higher yield, while the latter is a significant product in the reactions with Lawesson's reagent; as well as small amounts of minor products. A mechanistic rationalization of these products is discussed in some detail. The new fused dithioles have been converted to novel series of fused TTF derivatives.
Subject Keywords
Organic Chemistry
,
Biochemistry
,
Drug Discovery
URI
https://hdl.handle.net/11511/67671
Journal
TETRAHEDRON
DOI
https://doi.org/10.1016/j.tet.2003.08.042
Collections
Department of Chemistry, Article
Suggestions
OpenMETU
Core
Efficient rearrangement of epoxides catalyzed by a mixed-valent iron trifluoroacetate [Fe3O(O2CCF3)(6)(H2O)(3)]
Erturk, Erkan; Gollu, Mehmet; Demir, Ayhan Sıtkı (Elsevier BV, 2010-03-27)
The mixed-valent oxo-centered triiron(III, III, II) trifluoroacetate complex [(Fe2FeO)-Fe-III-O-II(C2CCF3)(6)(H2O)(3)] Was prepared by reacting anhydrous iron(III) chloride with boiling trifluoroaceric acid under nitrogen. The non-hygroscopic and readily available mixed-valent triiron trifluoroacetate complex Was found to be an efficient catalyst for the regioselective rearrangement of epoxides. A number of carbonyl compounds formed via the rearrangement of epoxides could be obtained by a simple filtration ...
New approaches to polysubstituted pyrroles and pyrrolinones from alpha-cyanomethyl-beta-ketoesters
Demir, Ayhan Sıtkı; Emrullahoglu, Mustafa; Ardahan, Gulben (Elsevier BV, 2007-01-08)
In this present paper, we report the efficient, regioselective one-pot synthesis of 5-alkoxy and 5-alkylsulfanylpyrrole-3-carboxylates in high yields via the zinc perchlorate-catalyzed addition of alcohols and thiols to the nitrile carbon of alpha-cyanornethyl-beta-ketoesters followed by annulation. The addition-annulation process is undertaken in aqueous solution to give 4,5-dihydro-5-oxo-1H-pyrrole-beta-carboxylates (pyrrolinones) in good yields. These 4,5-dihydro-5-oxo-1H-pyrrole-3-carboxylates are also ...
A novel synthesis of 1,2,4-oxadiazoles and isoxazoles
KIVRAK, Arif; Zora, Metin (Elsevier BV, 2014-01-28)
A novel synthesis of 1,2,4-oxadiazoles and isoxazoles is described by utilizing the reactions between amidoximes and alpha,beta-alkynic aldehydes and/or ketones. Conjugate addition products, obtained from amidoximes and alpha,beta-alkynic aldehydes and/or ketones, afford 1,2,4-oxadiazoles and isoxazoles when treated with bases and acids, respectively. 1,2,4-Oxadiazoles can also be synthesized directly from amidoximes and alpha,beta-alkynic aldehydes in a one-pot manner under basic conditions. The reactions ...
An effective new synthesis of 2-aminopyrrole-4-carboxylates
Demir, Ayhan Sıtkı; Emrullahoglu, M (Elsevier BV, 2005-10-31)
Efficient syntheses of 2-aminopyrroles are presented starting from beta-dicarbonyl compounds, bromoacetonitrile, and amines. Alkylation of beta-dicarbonyl compounds with bromoacetonitrile furnished alpha-cyanomethyl-beta-dicarbonyl compounds. The condensation reaction of alpha-cyanomethyl-beta-dicarbonyl compounds with amines catalyzed by p-TsOH affords the corresponding enamines in good yields. Base catalyzed cyclization via the addition of an amine moiety to the carbon-nitrogen triple bond of nitrile furn...
A novel one-pot, three-component reaction for the synthesis of isocoumarin-condensed pyrazoles
OZCAN, Sevil; Dengiz, Çağatay; DELIOMEROGLU, Murat K.; ŞAHİN, Ertan; BALCI, METİN (Elsevier BV, 2011-03-30)
The one-pot, three-component reaction of substituted homophthalic anhydrides with hydrazine in DMF as solvent and reactant, at reflux temperature, afforded isochromeno[3,4-c]pyrazole-5(2H)-one derivatives in high yields. The mechanism and roles of the substrates were investigated and it was found that cyclic hydrazides were formed as intermediates.
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
F. Turksoy, J. Wallis, U. Tunca, and T. Ozturk, “An in depth study of the formation of new tetrathiafulvalene derivatives from 1,8-diketones,”
TETRAHEDRON
, pp. 8107–8116, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67671.