W. Barbieri, Luigi Rossi Bernardi, Paolo Masi, Aristide Vigevani, Luciano Caglioti, Goffredo Rosini,
The stereochemistry of the 1:1 adducts of tosylazocyclohex-1-ene with various dienophiles (Δ1-pyrazolines) is discussed on the basis of chemical and physico-chemical evidence. The structure of the Δ2-pyrazolines and the spirocyclopropanes arising from the adducts, is also discussed.
Tópico(s): Synthesis and Reactions of Organic Compounds
1971 - Elsevier BV | Tetrahedron
Aristide Vigevani, Maurizio Foglio, Giovanni Franceschi, Paolo Masi, Antonino Suarato, Elena Gandini, G. Palamidessi,
The chemical shift non-equivalence of the allylic methylene groups CH2Br and CH2SPh, present in some azetidinone intermediates useful for the synthesis of cephem ring systems, affords a valuable criterion for establishing the stereochemistry of the double bond. The synthetic procedures used for the preparation of the compounds examined are described.
Tópico(s): Asymmetric Synthesis and Catalysis
1979 - | Journal of the Chemical Society. Perkin transactions I/Journal of the Chemical Society. Perkin transactions. I
Luciano Caglioti, Goffredo Rosini, Paolo Masi, Aristide Vigevani,
... GOFFREDO ROSINISearch for more papers by this authorPAOLO MASI, PAOLO MASISearch for more papers by this authorARISTIDE VIGEVANI, ARISTIDE VIGEVANISearch for more papers by this author LUCIANO ... GOFFREDO ROSINISearch for more papers by this authorPAOLO MASI, PAOLO MASISearch for more papers by this authorARISTIDE VIGEVANI, ARISTIDE VIGEVANISearch for more papers by this author First ...
Tópico(s): Organic Chemistry Cycloaddition Reactions
1973 - Wiley | Chemischer Informationsdienst
W. Barbieri, Luigi Rossi Bernardi, Paolo Masi, Aristide Vigevani, Luciano Caglioti, Goffredo Rosini,
Abstract Die Reaktion der Titelverbindung (I) mit den Maleinsäure‐Derivaten (II) liefert das Addukt (IIIa) (80% Ausbeute) bzw. ein Gemisch der epimeren Addukte (IIIb) und (IIIc) (je 40%).
Tópico(s): Synthetic Organic Chemistry Methods
1972 - Wiley | Chemischer Informationsdienst
Aristide Vigevani, Maurizio Foglio, G. FRANCESCHI, Paolo Masi, A. SUARATO, Elena Gandini, G. Palamidessi,
Abstract Die Nichtäquivalenz der ‐CH2‐X ‐Protonen der E‐ und Z‐Verbindungen (II), (IVa) (R3: ‐S‐Ph), (IVd), (V) und (VIII) wird für die Zuordnung der Stereochemie an der benachbarten Doppelbindung benutzt.
Tópico(s): Crystallography and molecular interactions
1979 - Wiley | Chemischer Informationsdienst
Yvan Nezerwe, Aristide Karangwa,
... pulled from DataStream. The data selected are the MASI daily index prices in the Casablanca Stock Exchange. ...
Tópico(s): Market Dynamics and Volatility
2018 - Elsevier BV | Transnational Corporation Review