Alkylation of Oxazolones and Related Heterocycles through an SN1 Reaction
作者:Andrea-Nekane R. Alba、Teresa Calbet、Mercé Font-Bardía、Albert Moyano、Ramon Rios
DOI:10.1002/ejoc.201100046
日期:2011.4
The alkylation of oxazolonesthrough an S(N)1 reaction by using stabilized carbocations is reported. The reaction (catalyzed by Bronsted acids, such as TFA or thioureas) affords the final compounds in excellent yields. Reaction with other heterocycles has also been studied, rendering pyrazolone or oxindole derivatives in good yields.