Enantioselective formation of cyclopropane spiroindenes from benzofulvenes by phase transfer catalysis.

Donslund, Bjarke S; Jessen, Nicolaj Inunnguaq; Jakobsen, Joakim Bøgelund; Monleón, Alicia; Nielsen, Rune Pagh; Jørgensen, Karl Anker

Donslund, Bjarke S; Jessen, Nicolaj Inunnguaq; Jakobsen, Joakim Bøgelund; Monleón, Alicia; Nielsen, Rune Pagh; Jørgensen, Karl Anker.

Afiliación

Donslund BS; Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark. kaj@chem.au.dk.
Jessen NI; Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark. kaj@chem.au.dk.
Jakobsen JB; Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark. kaj@chem.au.dk.
Monleón A; Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark. kaj@chem.au.dk.
Nielsen RP; Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark. kaj@chem.au.dk.
Jørgensen KA; Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark. kaj@chem.au.dk.

Chem Commun (Camb) ; 52(84): 12474-12477, 2016 Oct 13.

Article en En | MEDLINE | ID: mdl-27711500

ABSTRACT

ABSTRACT

The enantio- and diastereoselective formation of indenes spirofused to highly substituted cyclopropanes is described. The application of a new cinchona alkaloid derived ammonium salt in a phase transfer catalysis setup facilitates high selectivity and excellent yields at low catalyst loadings (0.1-1.0 mol%).

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Commun (Camb) Asunto de la revista: QUIMICA Año: 2016 Tipo del documento: Article País de afiliación: Dinamarca

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