DDQ-mediated oxidative coupling reaction of N,N-dimethyl enaminones with cycloheptatriene
作者:Dongping Cheng、Chenze Yu、Yueqi Pu、Xiaoliang Xu
DOI:10.1016/j.tetlet.2021.153609
日期:2022.2
An efficient 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-mediated oxidative coupling reaction of N,N-dimethyl enaminones with cycloheptatriene is developed. It provides a variety of α-alkenylated 1,3-dicarbonyl compounds in moderate to good yields under mild conditions.
Facile decomposition of 9-substituted 9-xanthydrols in basic media. Dependence of reaction behavior on structure and metal ion
作者:Rafik Karaman、Ibraheem T. Badejo、James L. Fry
DOI:10.1021/ja00198a082
日期:1989.8
have Rsub 3}COH yields} Rsub 2}C double bond} O + RH (1) decompositions of alcohols by free-radical pathways. Theoretical and experimental studies of the mechanisms of alkoxide decompositions have considered both heterolytic and homolytic pathways. Here they report the observation of unusual facile fragmentation of the alkoxides of several 9-substituted-9-xanthydrols in THF or Csub 6}Dsub 6} by