Ruthenium-Catalyzed Aldehyde Functionality Reshuffle: Selective Synthesis of E-2-Arylcinnamaldehydes from E-β-Bromostyrenes and Aryl Aldehydes
摘要:
A new concept for highly selective synthesis of E-2-arylcinnamaldehydes has been developed via a formal arylformylation of E-beta-bromostyrenes with readily available aryl aldehydes. This strategy involves an overall reshuffle of the aldehyde functionality with a loss of hydrogen bromide.
allylic C−C σ‐bond cleavage of simple olefins to give valuable cinnamyl aldehydes is reported. 1,2‐Aryl or alkyl migration through allylic C−C bond cleavage occurs in this transformation, which is assisted by an alkyl azide reagent. This method enables O‐atom incorporation into simple unfunctionalized olefins to construct cinnamyl aldehydes. The reaction features simple hydrocarbon substrates, metal‐free
Ruthenium-Catalyzed Aldehyde Functionality Reshuffle: Selective Synthesis of <i>E</i>-2-Arylcinnamaldehydes from <i>E-</i>β-Bromostyrenes and Aryl Aldehydes
作者:Ping Wang、Honghua Rao、Feng Zhou、Ruimao Hua、Chao-Jun Li
DOI:10.1021/ja306025d
日期:2012.10.10
A new concept for highly selective synthesis of E-2-arylcinnamaldehydes has been developed via a formal arylformylation of E-beta-bromostyrenes with readily available aryl aldehydes. This strategy involves an overall reshuffle of the aldehyde functionality with a loss of hydrogen bromide.