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A new α-methylene γ-lactone sesquiterpene from Hedyosmum arborescens

✍ Scribed by Sylvie Bercion; Marie-Anna Couppe de K/Martin; Jean-Pierre Baltaze; Paul Bourgeois


Book ID
113623470
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
78 KB
Volume
76
Category
Article
ISSN
0367-326X

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Mass spectrometric study of new α-methyl
✍ C. Borges; M. A. Almoster Ferreira; A. P. Rauter 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 300 KB 👁 1 views

A mass spectrometric study of six new a-methylene-y-lactone carbohydrate derivatives has been carried out in order to correlate the occurrence of metastable transitions with the stereochemistry of the compounds. Results indicate that the decomposition of some metastable fragment ions usually release