نتایج جستجو برای: sulfonyl azide

تعداد نتایج: 6498  

Journal: :Journal of the American Chemical Society 2006
Jérôme Waser Boris Gaspar Hisanori Nambu Erick M Carreira

The discovery, study, and implementation of the Co- and Mn-catalyzed hydrohydrazination and hydroazidation reactions of olefins are reported. These reactions are equivalent to direct hydroaminations of C-C double bonds with protected hydrazines or hydrazoic acid but are based on a different concept in which the H and the N atoms come from two different reagents, a silane and an oxidizing nitrog...

Journal: :Chemical communications 2014
Michael J Gattner Michael Ehrlich Milan Vrabel

We describe a new bioconjugation reaction based on the aziridination of norbornenes using electron-deficient sulfonyl azides. The reaction enables to attach various useful tags to peptides and proteins under mild conditions.

Journal: :Chemistry 2008
Laurent Chabaud Yannick Landais Philippe Renaud Frédéric Robert Frédéric Castet Marco Lucarini Kurt Schenk

The carboazidation of chiral allylsilanes has been investigated by varying the nature of the substituents at the silicon center and on the carbon framework. The influence of temperature and the nature of the sulfonyl azide, as well as the stereochemistry of the remote stereogenic center, on the 1,2-diastereocontrol of the process were considered. Good to excellent levels of diastereocontrol wer...

Journal: :Biochemistry 1979
V Sator J M Gonzalez-Ros P Calvo-Fernandez M Martinez-Carrion

A lipophilic photolabel, [3H] pyrenesulfonyl azide, has been synthesized and employed to detect which portions of the acetylcholine receptor (AcChR) molecule may be in contact with the hydrophobic environment of Torpedo californica electroplax membranes. The probe preferentially partitions into the hydrophobic regions of membrane lipids or Triton X100 micelles of detergent-solubilized membranes...

Journal: :Journal of the American Chemical Society 2005
Kaori Sakurai Thomas M Snyder David R Liu

DNA-templated organic synthesis (DTS) has previously been used primarily to direct coupling reactions between two DNA-linked reactants. In some cases, reactants are difficult or impossible to tether to DNA oligonucleotides. The development of strategies that enable non-DNA linked small-molecule reagents to participate in sequence-programmed synthesis therefore would significantly expand the cap...

Journal: :The Journal of organic chemistry 2017
Shiao Y Chow Luke R Odell

A Pd-catalyzed and ligand-free carbonylation/cycloaddition/decarboxylation cascade synthesis of sulfonyl amidines from sulfonyl azides and substituted amides at low CO pressure is reported. The reaction proceeds via an initial Pd-catalyzed carbonylative generation of sulfonyl isocyanates from sulfonyl azides, followed by a [2 + 2] cycloaddition with amides and subsequent decarboxylation, which ...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1970

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