Zobrazeno 1 - 10
of 35
pro vyhledávání: '"J Aitken"'
Autor:
David J. Aitken, Régis Guillot, Francesco Secci, Lorenza Ghisu, Angelo Frongia, Pierluigi Caboni, Nicola Melis
Publikováno v:
ChemInform. 46
An organocatalytic enantioselective synthesis of α-(benzylamino)cyclobutanones has been achieved by employing a tandem condensation/intramolecular rearrangement/proton transfer reaction and starting from racemic α-hydroxycyclobutanone and a selecti
Autor:
Francesco Secci, Régis Guillot, Angelo Frongia, Francesca Capitta, David J. Aitken, Pier Paolo Piras, Jean Ollivier
Publikováno v:
ChemInform. 46
The reaction provides 3-alkyl/aryl-2-(2-nitro-1-alkyl/aryl)cyclo-1-butanones as mixture of the two diastereomers bearing a trans-ring configuration.
Publikováno v:
ChemInform. 46
The [2 + 2]-photocycloaddition reactions of maleic anhydride (II) with either allyl alcohol (I) or propargyl alcohol (XII) is elaborated to provide access to 1,2,3-trifunctionalized cyclobutanes with three differentiated one-carbon substituents and c
Autor:
Régis Guillot, Francesco Secci, Pierluigi Caboni, Angelo Frongia, Jean Ollivier, David J. Aitken, Pier Paolo Piras, Hendrik Eijsberg
Publikováno v:
ChemInform. 45
Optimized conditions allow the enantioselective synthesis of the title compounds from racemic α-hydroxycyclobutanone and N-alkylaniline derivatives via a tandem condensation/keto-enol tautomerization process.
Publikováno v:
ChemInform. 45
An overview of the most important synthetic strategies currently available for the preparation of cyclopent-2-enones is presented and illustrated with recent applications. 1 Introduction 2 Multicomponent Ring Assembly 3 Cyclizations 4 Transformations
Autor:
David J. Aitken
Publikováno v:
ChemInform. 44
Autor:
Francesco Secci, Angelo Frongia, Jean Ollivier, Régis Guillot, Angela M. Bernard, David J. Aitken, Pier Paolo Piras, Francesca Capitta, Marco Spiga
Publikováno v:
ChemInform. 43
N-Phenylsulfonyl (S)-proline catalyzes the direct aldol reaction of 3-substituted cyclobutanones and aryl aldehydes in good yield and with excellent diastereoselectivity and enantioselectivity. This desymmetrization process provides highly functional
Autor:
Jean Ollivier, David J. Aitken, Pier Paolo Piras, Francesca Capitta, Francesco Secci, Angelo Frongia
Publikováno v:
ChemInform. 43
Autor:
Stéphane P. Roche, David J. Aitken
Publikováno v:
ChemInform. 42
The 4-hydroxy-2-cyclopentenone moiety is a highly valued molecular scaffold; it is bestowed with a wide-ranging chemical reactivity profile which synthetic chemists have exploited increasingly over the last few decades. This review summarises the met
Publikováno v:
ChemInform. 22
In the presence of lithium diisopropylamide at low temperature, the anion of the amino nitrile 1 is alkylated with epibromohydrin to give an acetonyl derivative 3; allene oxide is invoked as the reactive intermediate.