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Addition reactions of immonium benzotriazolates to acetylenic esters

โœ Scribed by Alan R. Katritzky; Clara N. Fali; Daniela C. Oniciu


Book ID
103404835
Publisher
Elsevier Science
Year
1995
Tongue
French
Weight
376 KB
Volume
51
Category
Article
ISSN
0040-4020

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## Abstract Four galanthamine derivatives were converted into immonium bromides by treatment with NBS. The nucleophilic addition of cyanide and methylmagnesium iodide to these galanthaminium halides was studied and the structures and conformations of two products were investigated by NMR spectrosco