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ChemInform Abstract: Sites of O-Alkylation and O-Glycosylation in Naturally Occurring Phenolics Using Kalidhar Shifts

โœ Scribed by Meera Meera


Publisher
John Wiley and Sons
Year
2010
Weight
15 KB
Volume
41
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Site Selectivity in
โœ Frances Heaney; Bronwyn M. Kelly; Sharon Bourke; Oliver Rooney; Desmond Cunningh ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 30 KB ๐Ÿ‘ 2 views

In order to examine the formation of N-vinyl nitrones the activated alkyne (II) and allene (VI) are reacted with oximes, e.g. (I). Three groups of products are obtained: the isomeric oximes (III), the stable O-addition products (IV) and the isoxazoline (V). With allene (VI) the reaction proceeds via