Synlett 2014; 25(2): 280-282
DOI: 10.1055/s-0033-1340347
letter
© Georg Thieme Verlag Stuttgart · New York

A Tandem Conjugate Addition–Intramolecular Horner–Wadsworth–Emmons Olefination Approach to the Synthesis of Cyclopentene[c]chroman-2-ones and Cyclopent-1-enecarboxylates

Dariusz Deredas
a   Institute of Organic Chemistry, Technical University (Politechnika), Żeromskiego 116, 90-924 Łódź, Poland   Fax: +48(42)6365530   Email: henkrawc@p.lodz.pl
,
Krzysztof Huben
a   Institute of Organic Chemistry, Technical University (Politechnika), Żeromskiego 116, 90-924 Łódź, Poland   Fax: +48(42)6365530   Email: henkrawc@p.lodz.pl
,
Waldemar Maniukiewicz
b   Institute of General and Ecological Chemistry, Technical University (Politechnika), Żeromskiego 116, 90-924 Łódź, Poland
,
Henryk Krawczyk*
a   Institute of Organic Chemistry, Technical University (Politechnika), Żeromskiego 116, 90-924 Łódź, Poland   Fax: +48(42)6365530   Email: henkrawc@p.lodz.pl
› Author Affiliations
Further Information

Publication History

Received: 25 October 2013

Accepted after revision: 09 November 2013

Publication Date:
06 December 2013 (online)


Abstract

A strategically new approach to cyclopentene[c]chroman-2-ones and cyclopent-1-enecarboxylates by tandem Michael–Horner–Wadsworth–Emmons reaction of 2,5-hexanedione with 3-(diethoxyphosphoryl)coumarins is described. The products were obtained as single diastereoisomers in high yields.

Supporting Information

Primary Data