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Oxidative Deprotection (oxidative + deprotection)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

ChemInform Abstract: KBrO3/MoO3: An Efficient Reagent System for the Oxidative Deprotection of Semicarbazones, 1,1-Diacetates and Acetals.

CHEMINFORM, Issue 36 2009
Farhad Shirini
Abstract ChemInform 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. [source]

ChemInform Abstract: Efficient Oxidative Deprotection of Trimethylsilyl, Tetrahydropyranyl and Methoxymethyl Ethers under Solvent-Free Conditions.

CHEMINFORM, Issue 46 2008
Farhad Shirini
Abstract ChemInform 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. [source]

ChemInform Abstract: Ionene-Supported Peroxodisulfates: Polymeric Reagents for the Oxidative Deprotection of TMS and THP Ethers and Oxidative Cleavage of the C=N Bond in Water.

CHEMINFORM, Issue 33 2008
Moslem Mansour Lakouraj
Abstract ChemInform 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. [source]

Oxidative Deprotection of Oximes, Phenylhydrazones and Semicarbazones Using Pyridinium Chlorochromate in Catalytic Amount with t-Butyl Hydroperoxide and in the Solid State on Montmorillonite K-10 Clay Support under Microwave Irradiation.

CHEMINFORM, Issue 8 2005
Nemai C. Ganguly
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Zeolite-Supported Chromium(VI) Oxide: A Mild, Efficient, and Inexpensive Reagent for Oxidative Deprotection of Trimethylsilyl Ethers under Microwave Irradiation.

CHEMINFORM, Issue 52 2004
Majid M. Heravi
No abstract is available for this article. [source]

Direct Oxidative Deprotection of Tetrahydropyranyl Ethers Using Hexamethylenetetramine-Bromine Supported onto Silica Gel under Microwave Irradiation in Solventless System.

CHEMINFORM, Issue 52 2004
Mahboobeh Behnam Dehkordi
No abstract is available for this article. [source]

Ecofriendly Solid-State Oxidative Deprotection of 1,3-Dithianes and 1,3-Dithiolanes Using Ammonium Persulfate on Wet Montmorillonite K-10 Clay Support under Microwave Irradiation.

CHEMINFORM, Issue 30 2004
Nemai C. Ganguly
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

2,6-Dicarboxypyridinum Chlorochromate: A Mild, Efficient, and Selective Reagent for Oxidative Deprotection of Oximes to Carbonyl Compounds.

CHEMINFORM, Issue 11 2003
Rahman Hosseinzadeh
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Synthesis of Enantiopure Tricarbonyl(indan-1,2-dione)chromium

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 24 2005
Dirk Leinweber
Abstract A multistep synthesis of the planar chiral tricarbonyl(,6 -indan-1,2-dione)chromium, based on acetal protection of the keto groups, is presented. Since common deacetalization procedures failed, an oxidative deprotection with triphenylcarbenium tetrafluoroborate was used. Tricarbonyl(,6 -indan-1,2-dione)chromium is regarded as a potential precursor for dianionic oxy-Cope rearrangements upon alkenyllithium diaddition. As an unexpected side product in the synthesis, an indan-1,2-dione complex with a triphenylmethyl substituent at C-3 was obtained. Attempts directed towards the formation of enantiomerically pure material include the first reported investigation into an enantioselective ketone reduction with two methoxy substituents present in the , position. Although enantiomeric excesses of up to 84.5,% were achieved, the chemical yields decreased with increasing ee. A classical resolution was therefore undertaken, giving access to the enantiomerically pure title compound (99.4,% ee). The absolute configuration was verified by an X-ray structure analysis of an intermediate. First experiments concerning the alkenyllithium addition showed that a single addition is possible while a second one does not occur, presumably due to enolate formation. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005) [source]