Titanium(IV) chloride-mediated ring cleavage and Michael addition of 3,3-dialkylcyclobutanones and 3-[(trimethylsilyl)methyl]-cyclobutanones
β′-Chloro and β′,γ′-unsaturated trichlorotitanium enolates, which were formed in situ by titanium(IV) chloride-mediated ring cleavage of 3,3-dialkylcyclobutanones and 3-[(trimethylsilyl)methyl]cyclobutanones, reacted with enones to give Michael adducts wi
Selective synthesis of glutaric acids from olefins
Six representative glutaric acids have been regio- and stereoselectively prepared from the corresponding olefins in 49 to 65% overall yields. α,α-Dichlorocyclopentanones, readily available from the olefins by three-carbon annelation, are transformed via chloro enol acetates to the glutaric acids.
Depres,Greene
p. 7065 - 7068
(2007/10/02)
Efficient Syntheses of (+/-)-β-Cuparenone. Conjugate Addition of Organozinc Reagents
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Greene, Andrew E.,lamsard, Jean-Philippe,Luche, Jean-Louis,Petrier, Christian
p. 931 - 932
(2007/10/02)
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