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Synlett 2001; 2001(Special Issue): 1046-1049
DOI: 10.1055/s-2001-14658
DOI: 10.1055/s-2001-14658
letter
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.
Synthesis of Cyclopentenediolates and Cyclopentane-1,2-diones by Carbonylation of Titanacyclobutane Complexes Prepared by Free Radical Alkylation
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Publikationsverlauf
Publikationsdatum:
31. Dezember 2001 (online)
![](https://www.thieme-connect.de/media/synlett/2001SpecialIssue/lookinside/thumbnails/10.1055-s-2001-14658-1.jpg)
The synthesis of titanium cyclopentenediolates by the double carbonylation of titanacyclobutane complexes is reported, a process known as the Bercaw carbonylation. The reaction is general for a range of titanacyclobutanes prepared by free radical alkylation of allyltitanium(III) precursors. Titanacyclobutane formation and carbonylation can be conducted in one pot without the isolation of sensitive intermediates. Subsequent conversion to lithium cyclopentenediolates and cyclopentane-1,2-diones provides access to a range of synthetically valuable organic products.
carbonylations - titanium - enediolates - metallacyclobutane complexes - cyclopentane-1,2-diones