'Oxonium ion' diaporamas de présentation

Prof. Duncan Wardrop October 15, 2012

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Sugar Chemistry & Glycobiology

Sugar Chemistry & Glycobiology. In Solomons, ch.22 (pp 1073-1084, 1095-1100) Sugars are poly-hydroxy aldehydes or ketones Examples of simple sugars that may have existed in the pre-biotic world:. Most sugars, e.g. glyceraldehyde, are chiral : sp 3 hybridized C with 4 different substituents

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LYSOZOME MECHANISM

BIOCHEMISTRY

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Organic Chemistry Lab 315 Fall, 2013

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POWERPOINT

A. POWERPOINT. ON. ACID. CATALYZED. HYDRATION. OF. ALKENE. OBJECTIVE. DISCUSS THE. REACTION INVOLVED. IN THE PREPRATION. OF ALCOHOL. FROM ALKENE. METHODOLOGY. LECTURE METHOD DISCUSSION METHOD. Hydration of Alkenes. Reverse of dehydration of alcohol

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Organic Chemistry Lab 315 Fall, 2013

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Addition of water, H - OH

Addition of water, H - OH. + H 2 O. Mechanism of hydration. step 1. H +. + H 2 O. catalyst. ? e -. electrophile. add H +. nucleophile. H +. O. H. H. Mechanism of hydration. step 2. +. electrophile. nucleophile. step 3. oxonium ion. + H +. alcohol. C. C. Br. Br. C.

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Addition of water, H - OH

b). a). Addition of water, H - OH. + H 2 O. major product. 2-methyl-2-butene. minor product. Mechanism of hydration. step 1. H +. + H 2 O. catalyst. ? e -. electrophile. add H +. nuclophile. H +. O. H. H. Mechanism of hydration. step 2. +. electrophile. nucleophile.

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Automated N-Glycopeptide Lookup from Glycan Databases using Tandem Mass Spectra. MS/MS Spectra. 3288 . Kevin B. Chandler 1 , Petr Pompach 1 , Marshall Bern 2 , Radoslav Goldman 1 , Nathan J. Edwards 1. w/ glycan oxonium ion (204, 366) peaks. 2303.

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