Triple nucleophilic additions of (trimethylsilyl)ketene acetals to tropylium derivatives: Access to the core nuclei of xanthanolides

Tetrahedron Letters

Volumn 45, Issue 11, 2004, Pages 2409-2411

  Rudler, Henri ^a   Alvarez, Cecilio ^a   Parlier, Andrée ^a   Perez, Eugenia ^a   Denise, Bernard ^a   Xu, Yiming ^a   Vaissermann, Jacqueline ^a  

^a SORBONNE UNIVERSITÉ   (France)

Author keywords

Cr(CO)3trienecomplexes; Ketene acetals; Tropylium; Xanthanolides

Indexed keywords

ACETAL DERIVATIVE; BORIC ACID; CARBONYL DERIVATIVE; ESTER DERIVATIVE; KETENE DERIVATIVE; LACTONE DERIVATIVE; TRIMETHYLSILYL DERIVATIVE; TROPYLIUM TETRAFLUOROBORATE; UNCLASSIFIED DRUG; XANTHENE DERIVATIVE;

ARTICLE; CHEMICAL STRUCTURE; COMPLEX FORMATION; REACTION ANALYSIS; STRUCTURE ANALYSIS; X RAY ANALYSIS;

EID: 1242270579     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.01.068     Document Type: Article

References (15)

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14. The same esters could be prepared by adding the corresponding lithium enolates to tropylium tetrafluoroborate.
15. 2)=0.0583 (for all unique reflections). Crystallographic data for the structures of 6b and 9b have been deposited with the Cambridge Crystallographic Data Centre as supplementary material, publication numbers CCDC 221173 and 221174. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax 1223-336033 or e-mail: deposit@ccdc.cam.ac.uk ].