traditional method for this reaction was not adaptable safely to conditions for the pilot plant, a new procedure had to be developed. It was found that the reaction can be catalyzed by strongly acidic cation-exchange resins in a very economical way. The yield of the reaction product was dramatically increased compared to that in the original method. From an environmental point of view, this method is also
Reaction of unsaturated sulfoxides with alkyllithiums
作者:Günter Neef、Ulrich Eder、Arne Seeger
DOI:10.1016/s0040-4039(00)77734-3
日期:1980.1
Nucleophilic attack of methyllithium on allene sulfoxides offers a stereospecific access to sulfur-free allenes. Reaction of phenylsulfinyl substituted diene leads via a benzilic-type rearrangement to phenyl substituted diene .