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10.
The Two New Adsorbed on Alumina Tributylammonium
Halochromates, (C4H9)3NH[CrO3X], (X=F, Cl): Reagents for Oxidative
Coupling of Thiols
Z. JAVANSHIR1, S.
GHAMMAMY1,2*, S. BAGI2, R. Rahimi3
1Department
of Chemistry, Faculty of Science, Islamic Azad University, Ardebil
Branch, Ardebil, Iran
2Department
of Chemistry, Faculty of Science, Imam Khomeini International
University, Qazvin, Iran
3Faculty of
Chemistry, Science and Industry University, Tehran, Iran
*Corresponding author:
shghamami@ikiu.ac.ir
or
shghamamy@yahoo.com
Abstarct: Tributylammonium
fluorochromate (TriBAFC) and Tributylammonium chlorochromate
(TriBACC) are efficient and new reagents, which prepare easily and
oxidize thiols to the corresponding disulfides quickly. The
reactions perform cleanly and controlled to stop at the disulfide
stage without over-oxidation side products. Coupling of thiols to
their corresponding disulfides studied in solution at room
temperature. The easy procedure, simple work-up, short reaction
times, and excellent yields are another advantages of these
reagents.
Keywords: Tributylammonium
fluorochromate(VI); Tributylammonium chlorochromate(VI);
heterogeneous oxidants; alumina; thiol
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