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Neighbouring group effects on rates of thermolysis of 4-azidothiazoles

โœ Scribed by Erik Ceulemans; Karin Vercauteren; Leonard K. Dyall; Dirk Buelens; Wim Dehaen

Book ID
108378676
Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
544 KB
Volume
53
Category
Article
ISSN
0040-4020

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๐Ÿ“œ SIMILAR VOLUMES

Neighbouring group effects on regioselec
Neighbouring group effects on regioselectivity of wittig reactions with maleic anhydrides
โœ Margaret M. Kayser; Livain Breau ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 226 KB

Condensations of stabilized Wittig reagent 1 with a variety of substituted maleic anhydrides are discussed. It is proposed that the alkoyy substituents can act as Lewis bases towards the phosphorus of the ylid. Such conplexation, stabilizing the transition state for the reaction at the neighbouring