Abstract : Radical adducts of S-α-ketonyl dithiocarbonates (xanthates) to triethyl vinylsilane are converted into triethylsilyl-substituted cyclopropanes upon ozonolysis followed by exposure to 1,4-dibromobutane and Cs2CO3/18-crown-6 in refluxing acetonitrile. The sequence works best with phenacyl type adducts, and the use of the less bulky trimethysilyl (TMS) derivatives results in extensive desilylation.
Type de document :
Article dans une revue
Organic Letters, American Chemical Society, 2014, 16 (23), pp.6180-6183. 〈10.1021/ol503081b〉
https://hal-polytechnique.archives-ouvertes.fr/hal-01102507
Contributeur : Denis Roura
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Soumis le : lundi 12 janvier 2015 - 20:52:42
Dernière modification le : jeudi 7 février 2019 - 17:16:34
