505904-80-3Relevant academic research and scientific papers
Bioactivity-guided mixed synthesis and evaluation of α-alkenyl-γ and δ-lactone derivatives as potential fungicidal agents
Wu, Yong-Ling,Gao, Yan-Qing,Wang, De-Long,Zhong, Chen-Quan,Feng, Jun-Tao,Zhang, Xing
, p. 56496 - 56508 (2017/12/27)
In view of the great antifungal activities of sesquiterpene lactones and natural product Tulipalin A, 52 derivatives derived from α-methylene-γ-butyrolactone substructures were synthesized to study antifungal activities. In vitro and in vivo antifungal activity results revealed that compounds 2-25, which contain a γ-butyrolactone scaffold and cinnamic aldehyde moiety, have greater potent fungicidal activity than other compounds. The preliminary structure-activity relationships (SARs) demonstrated that compounds with electron-withdrawing groups and small steric hindrance would have more desirable potency. Meanwhile, the quantitative structure-activity relationship (QSAR) model (R2 = 0.947, F = 65.77, and S2 = 0.0028) revealed a convincing correlation of antifungal activity against B. cinerea with molecular structures of title compounds. The present study provided a more detailed insight into the antifungal activity of the α-methylene-γ-butyrolactone substructure, which provided a potential expectation for the exploration of α-alkenyl-γ-butyrolactone structures in agriculture.
CO2-activation for γ-butyrolactones and its application in the total synthesis of (±)-heteroplexisolide e
Li, Suhua,Ma, Shengming
, p. 2411 - 2418 (2012/10/29)
An efficient nickel(0)-catalyzed highly regio- and stereoselective hydrocarboxylation of homopropargylic alcohols with ZnEt2 in the presence of CO2 (1 atm, balloon) to synthesize α-alkylidene- γ-butyrolactones is described. The catal
An approach to the total synthesis of the marine ascidian metabolite perophoramidine via a halogen-selective tandem heck/carbonylation strategy
Artman III, Gerald D.,Weinreb, Steven M.
, p. 1523 - 1526 (2007/10/03)
(Matrix presented) A halogen-selective tandem intramolecular Heck/carbonylation reaction has been developed for the construction of the C,E,F-ring system and the C20 quaternary center found in perophoramidine (1). This process can be effected in good yiel
