64267-14-7Relevant academic research and scientific papers
Diastereoselective Synthesis of Rauhut-Currier-Type Adducts via an Unexpected α-Addition of α,β-Unsaturated γ-Butyrolactams to Coumarin Derivatives
Yang, Shu-Mei,Madhusudhan Reddy, Ganapuram,Liu, Meng-Hsien,Wang, Tzu-Ping,Yu, Jhen-Kuei,Lin, Wenwei
, p. 781 - 789 (2017)
A novel, base-catalyzed and highly diastereoselective direct Michael addition-isomerization sequence is presented for the efficient synthesis of Rauhut-Currier-type adducts. An unexpected α-addition of γ-butyrolactam onto the 3-acyl coumarin derivatives was observed rather than the γ-addition, which is more common. The adducts could further undergo hydrolysis/decarboxylation to generate the products which are equivalent to those obtained by α-addition of γ-butyrolactam onto the corresponding chalcones.
