96914-71-5Relevant articles and documents
An improved gem-dimethylcyclopropanation procedure using triisopropyl-sulfoxonium tetrafluoroborate
Edwards, Michael G.,Paxton, Richard J.,Pugh, David S.,Taylor, Richard J. K.
, p. 521 - 524 (2008)
A new procedure for the cyclopropanation of α,β-unsaturated carbonyl compounds and related systems is described which employs triisopropylsulfoxonium tetrafluoroborate and sodium hydride in dimethylformamide. Using this reagent, a range of α,β-unsaturated ketones (and an ester and a vinyl nitro example) has been converted into the corresponding gem-dimethylcyclopropyl carbonyl compounds; in addition, a preliminary result is described in which an activated alcohol is converted directly into a gem-dimethylcyclopropyl ketone by a one-pot tandem oxidation-cyclopropanation sequence, albeit in low yield. Georg Thieme Verlag Stuttgart.
Nitro Compounds as Nucleophilic Alkylidene Transfer Reagents
Ono, Noboru,Yanai, Tetsuya,Hamamoto, Isami,Kamimura, Akio,Kaji, Aritsune
, p. 2806 - 2807 (2007/10/02)
Nitro compounds can be used as useful and general nucleophilic alkylidene transfer reagents for the preparation of various cyclopropanes.