Structural chemistry of 2-aza-1,3-dienes
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چکیده
منابع مشابه
Preparation and Reaction Chemistry of Novel Silicon-Substituted 1,3-Dienes.
2-Silicon-substituted 1,3-dienes containing non transferrable groups known to promote transmetallation were prepared by Grignard chemistry and enyne metathesis. These dienes participated in one pot metathesis/Diels-Alder reactions in regio- and diastereoselective fashions. Electron-rich alkenes showed the fastest rates in metathesis reactions, and ethylene, a commonly used metathesis promoter s...
متن کاملX-ray analysis and structural characterization of 2-phenyl-6-aza-1,3- dioxa-2-borabenzocyclononenones
Nine new monomeric boronates of the type 2-phenyl-6-aza-1,3-dioxa-2-borabenzocyclononen-4-ones (3a /3i) were prepared from N -(2-hydroxybenzyl)-a-aminoacids 1a /1i and phenylboronic acid 2 using 20:1 benzene /DMSO mixtures. The compounds were characterized by H-, C-, B-, Nand 2D-NMR (HETCOR, NOESY and COLOC) experiments, FT infrared, mass spectra and elemental analysis. Suitable monocrystals of...
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Enantioselective (formal) aza-Diels-Alder reactions between acylhydrazones and non-Danishefsky-type dienes have been developed. The reactions are promoted by a simple and economical chiral silicon Lewis acid and are typically conducted at ambient temperature. Both glyoxylate- and aliphatic aldehyde-derived hydrazones may be employed, as may variously substituted dienes, leading to the synthesis...
متن کاملStructural Chemistry
▶ Offers original research papers on condensed and gaseous states of matter ▶ Spans artificial divisions in current literature among the areas of structure determination, energetics, and applications ▶ Offers broad discussion of results, observation of relationships among various properties, and applications of structure and energy information in all domains of chemistry ▶ 97% of authors who an...
متن کاملStructural Chemistry
▶ Offers original research papers on condensed and gaseous states of matter ▶ Spans artificial divisions in current literature among the areas of structure determination, energetics, and applications ▶ Offers broad discussion of results, observation of relationships among various properties, and applications of structure and energy information in all domains of chemistry ▶ 97% of authors who an...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2008
ISSN: 0108-7673
DOI: 10.1107/s0108767308099352