ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Hydride Eliminations, VIII1). - Note on Site-Specific Hydride Abstraction from CarbanionsReaction of lithium and magnesium alkyl compounds at - 20 to 0°C with ethylene in the presence of nickel chloride leads under β-hydride abstraction to completely site-specific olefin formation. In stereochemically relevant cases the formation of the thermodynamically less stable Hofmann product is slightly preferred.
Notes:
Lithium- und Magnesiumalkylverbindungen reagieren bei - 20 bis 0°C mit Ethylen in Gegenwart von Nickelchlorid unter β-Hydridabstraktion in streng positionsspezifischer Bildung zu Olefinen. In stereochemisch relevanten Füllen wird die Bildung des thermodynamisch weniger stabilen Hofmann-Produkts geringfügig bevorzugt.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198019800115
