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Your search keyword '"Simeon Arseniyadis"' showing total 3 results
Start Over Author "Simeon Arseniyadis" Topic chemistry.chemical_classification
3 results on '"Simeon Arseniyadis"'

1. Achilleol B: a new tricyclic triterpene skeleton from Achillea odorata L

Author

Alejandro F. Barrero, Enrique A. Manzaneda R, Ramón A. Manzaneda R, Simeon Arseniyadis, and Eric Guittet

Subjects
chemistry.chemical_classification, Achilleol B, Achillea, biology, Chemistry, Stereochemistry, Organic Chemistry, biology.organism_classification, Biochemistry, Skeleton (computer programming), Squalene, chemistry.chemical_compound, Triterpene, Drug Discovery, Tricyclic
Abstract

A new triterpene 1a from Achillea odorata L. has been isolated, and its structure established on the basis of its spectroscopic properties as well as those of its acetylderivative 1b. 1a shows the first example of monocyclic triterpene skeleton, biosynthetized in the first step of cyclization of squalene oxyde.

Published
1990
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3. Acyclic stereoselection. 35. Effect of cation on diastereofacial selectivity in aldol reactions of a chiral α-silyloxy ketone

Author

Simeon Arseniyadis and Clayton H. Heathcock

Subjects
chemistry.chemical_classification, Ketone, Chemistry, Organic Chemistry, chemistry.chemical_element, Biochemistry, Benzaldehyde, chemistry.chemical_compound, Aldol reaction, Drug Discovery, Organic chemistry, Aldol condensation, Lithium, Counterion, Selectivity, Aliphatic compound
Abstract

By an appropriate choice of cation, three of the four possible aldols from the reactions of the chiral α-silyloxy ketone 1 with aldehydes may be obtained. The Z , lithium enolate provides 6, the Z , boron enolate gives 7, and the E magnesium enolate affords 8.

Published
1985
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