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Selective Deprotection (selective + deprotection)

Distribution by Scientific Domains

Chemistry	100%

Distribution within Chemistry

Organic Chemistry	81%
General & Introductory Chemistry	18%

Selected Abstracts

On the Synthesis and Selective Deprotection of Low-Generation Dendrons with Orthogonally Protected Peripheral Amine Groups and a Possible Impact of the Deprotection Conditions on the Stability of Dendronized Polymers' Skeletons

HELVETICA CHIMICA ACTA, Issue 11 2006
Rabie Al-Hellani
Abstract The synthesis of first- and second-generation dendrons with defined ratios of orthogonally protected amine groups in the periphery ((benzyloxy)carbonyl (Cbz) and (tert -butoxy)carbonyl (Boc) protection) and the degree to which they can be selectively removed are described. The reaction conditions required for these deprotections were applied to methacrylic acid (=,2-methylprop-2-enoic acid) based dendronized polymers carrying the same peripheral protecting groups to investigate whether they have any detrimental interference with the polymer skeleton. Specifically it was explored whether dendrons attached to the backbone could possibly be cleaved off as a whole (de-dendronization). Finally it was investigated how de-dendronizations can be used for quantifying both the dendron-structure perfection and the polymer-backbone configurations. [source]

ChemInform Abstract: Selective Deprotection of Silyl Ethers with Sodium Periodate.

CHEMINFORM, Issue 43 2009
Jun Li
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: A Mild and Efficient Approach for the Selective Deprotection of Benzyl and Phenyl Trimethylsilyl Ethers in 1-Butyl-3-methylimidazolium Chloride.

CHEMINFORM, Issue 12 2009
Ahmad Shaabani
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]

A Facile and Catalytic Method for Selective Deprotection of tert-Butyldimethylsilyl Ethers with Copper(II) Bromide.

CHEMINFORM, Issue 9 2007
Suchitra Bhatt
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, please click on HTML or PDF. [source]

A Cheap, Simple, and Versatile Method for Acetylation of Alcohols and Phenols and Selective Deprotection of Aromatic Acetates under Solvent-Free Condition.

CHEMINFORM, Issue 31 2005
Fatemeh Rajabi
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Facile and Selective Deprotection of Allyl Esters Catalyzed by H-, Zeolite.

CHEMINFORM, Issue 50 2003
Rajesh K. Pandey
No abstract is available for this article. [source]

A New Protocol for Selective Deprotection of N-tert-Butoxycarbonyl Protective Group (tBoc) with Sn(OTf)2.

CHEMINFORM, Issue 27 2003
D. Subhas Bose
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Facile and Selective Deprotection of tert-Butyldimethylsilyl Ethers of Phenols Using Triethylamine N-Oxide.

CHEMINFORM, Issue 52 2002
P. K. Zubaidha
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

ChemInform Abstract: Highly Selective Deprotection of tert-Butyl Esters Using Ytterbium Triflate as a Catalyst under Mild Conditions.

CHEMINFORM, Issue 19 2002
P. Ramu Sridhar
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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]

Synthesis of Oligosaccharide Mimetics with Glycoaminoxy Acids

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 34 2009
Yanchun Gong
Abstract From readily available di- O -isopropylidene- D -glucose, a D -ribofuranoid glycoaminoxy acid and its tBu ester have been efficiently prepared as a new family of sugar building blocks by introducing the phthalimido aminoxy group by a Mitsunobu reaction. We found that the tBu ester can be selectively deprotected with 13.7,% TFA in CH2Cl2 at 0 °C in the presence of the 1,2- O -isopropylidene acetal. This selective deprotection has made possible the synthesis of homo-oligomers of glycoaminoxy acids (up to six sugar units) as a novel type of oligosaccharide mimetics. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source]

Donor-Bound Glycosylation for Various Glycosyl Acceptors: Bidirectional Solid-Phase Semisynthesis of Vancomycin and Its Derivatives

CHEMISTRY - AN ASIAN JOURNAL, Issue 1 2007
Takayuki Doi Prof.
Abstract The glycosidation of a polymer-supported glycosyl donor, N -phenyltrifluoroacetimidate, with various glycosyl acceptors is reported. The application of the polymer-supported N -phenyltrifluoroacetimidate is demonstrated in the synthesis of vancomycin derivatives. 2- O -[2-(azidomethyl)benzoyl]glycosyl imidate was attached to a polymer support at the 6-position by a phenylsulfonate linked with a C13 alkyl spacer. Solid-phase glycosidation with a vancomycin aglycon, selective deprotection of the 2-(azidomethyl)benzoyl group, and glycosylation of the resulting 2-hydroxy group with a vancosamine unit were performed. Nucleophilic cleavage from the polymer support with acetate, chloride, azido, and thioacetate ions provided vancomycin derivatives in pure form after simple purification. The semisynthesis of vancomycin was achieved by deprotection of the acetate derivative. [source]