155259-51-1Relevant academic research and scientific papers
New access to 1,3-diketones from aldehydes
Fargeas, Valérie,Baalouch, Myriam,Metay, Estelle,Baffreau, Jer?me,Ménard, Delphine,Gosselin, Pascal,Bergé, Jean-Pascal,Barthomeuf, Chantal,Lebreton, Jacques
, p. 10359 - 10364 (2007/10/03)
A simple and efficient methodology to introduce an 1,3-diketone motif from various aldehyde precursors in three steps with good overall yields is described using β-ketosulphone 7 as masked equivalent of acetone. A three-step sequence was studied leading i
Rhodium carbenoid mediated cyclisation of α-diazo-β-keto-δ-hydroxy- phenylsulfones
Lacrampe, Fabienne,Léost, Fran?oise,Doutheau, Alain
, p. 4773 - 4776 (2007/10/03)
The title reaction gave rise to 2-phenylsulfonyl-3-oxo-tetrahydrofurans in satisfactory yields providing an entry to some furan derivatives. (C) 2000 Published by Elsevier Science Ltd.
Exclusively endo-selective Lewis acid-catalyzed hetero Diels-Alder reactions of (E)-1-phenylsulfonyl-3-alken-2-ones with vinyl ethers
Wada, Eiji,Pei, Wen,Yasuoka, Hiroshi,Chin, Uchou,Kanemasa, Shuji
, p. 1205 - 1220 (2007/10/03)
(E)-1-Phenylsulfonyl-3-alken-2-ones as new hetero 1,3-dienes undergo smooth hetero Diels-Alder reactions with vinyl ethers in the presence of a catalytic amount of Lewis acid such as ZnI2, Eu(fod)3, and TiCl2(i-PrO)2
(E)-2-Oxo-1-sulfonyl-3-alkenes as Reactive Hetero 1,3-Dienes. Absolutely endo-Selective Hetero Diels-Alder Reactions with Vinyl Ethers in the Presence of a Lewis Acid Catalyst
Wada, Eiji,Yasuoka, Hiroshi,Kanemasa, Shuji
, p. 145 - 148 (2007/10/02)
(E)-2-Oxo-1-sulfonyl-3-alkenes as new hetero 1,3-dienes undergo smooth hetero Diels-Alder reactions with vinyl ethers in the presence of Eu(fod)3 or TiCl2(i-PrO)2.The reactions are absolutely endo-selective producing 2,4-cis-3,4-dihydro-2H-pyrans in excel
