22286-86-8Relevant academic research and scientific papers
Cobalt-catalyzed annulation of styrenes with α-bromoacetic acids
Nguyen, Tung T.,Ngo, Bao H. T.,Le, Huy X.,Vu, Linh N. P.,To, Tuong A.,Phan, Anh N. Q.,Phan, Nam T. S.
, p. 5451 - 5455 (2021/02/12)
We report a method for addition of α-bromophenylacetic acids to vinyl C-C bonds in styrenes to afford γ-lactones. Reactions employed a simple cobalt catalyst Co(NO3)2·6H2O in the presence of dipivaloylmethane (dpm) ligand.
A novel intermolecular synthesis of γ-lactones via visible-light photoredox catalysis
Wei, Xiao-Jing,Yang, Deng-Tao,Wang, Lin,Song, Tao,Wu, Li-Zhu,Liu, Qiang
supporting information, p. 6054 - 6057 (2014/01/06)
Direct γ-lactone formation via visible-light photoredox catalysis has been achieved efficiently including hydroxylalkylation of aromatic alkenes and transesterification. The present photocatalytic protocol has good regioselectivity and substrate compatibility, affording a novel way to intermolecular γ-lactone synthesis by the reaction of styrenes with α-bromo esters in the absence of any external oxidants.
