Fritsch-Buttenberg-Wiechell (FBW) reaction of 1-Halovinyllithium Carbenoids: A Computational Study
소속 :
연사 : Prof. Lawrence M. Pratt (Fisk University)
일시 : 2009-06-03 13:00 ~
장소 : 500동 L303호
일시: 2009년 6월 3일 오후 1:00
장소: 500동 L303호
-Abstract-
1-Halovinyllithium carbenoids can undergo the Fritsch-Buttenberg-Wiechell (FBW) rearrangement to form alkynes. This reaction is quite facile when a hydrogen atom is present on carbon 2. The gas phase reaction mechanism may consist of a single step or several steps, depending on the aggregation state of the carbenoid. We examined the FBW reaction of 1-fluoro, chloro-, and bromovinyllithium in the monomer and two isomeric dimers. The migratory aptitude of the hydrogen atoms is dependent on the halogen and the aggregation state.
장소: 500동 L303호
-Abstract-
1-Halovinyllithium carbenoids can undergo the Fritsch-Buttenberg-Wiechell (FBW) rearrangement to form alkynes. This reaction is quite facile when a hydrogen atom is present on carbon 2. The gas phase reaction mechanism may consist of a single step or several steps, depending on the aggregation state of the carbenoid. We examined the FBW reaction of 1-fluoro, chloro-, and bromovinyllithium in the monomer and two isomeric dimers. The migratory aptitude of the hydrogen atoms is dependent on the halogen and the aggregation state.
