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Synthesis 2016; 48(19): 3420-3428
DOI: 10.1055/s-0035-1562786
DOI: 10.1055/s-0035-1562786
paper
Low-Temperature Intermolecular Addition of RCF2Li Compounds to Various Carbonyl Electrophiles for a Practical Synthesis of CF2-Containing Building Blocks
Weitere Informationen
Publikationsverlauf
Received: 06. Juni 2016
Accepted after revision: 05. Juli 2016
Publikationsdatum:
24. August 2016 (online)


This article is dedicated to the memory of Prof. Jean F. Normant and in tribute to his outstanding contribution to the field of organometallic chemistry.
Abstract
The addition of various RCF2Li compounds to a wide range of carbonyl electrophiles (aldehydes, ketones, acylsilanes, esters, and lactones) is reported. The reaction proceeds at very low temperature under Barbier conditions through a Br/Li exchange from the corresponding RCF2Br compounds. In contrast with existing methods that use more stable, but less reactive, organometallic species, there is efficient addition to esters, lactones and poorly reactive ketones.
Supporting Information
- Supporting information for this article is available online at http://dx.doi.org/10.1055/s-0035-1562786.
- Supporting Information