516472-44-9Relevant academic research and scientific papers
Photoredox-Catalyzed Isomerization of Highly Substituted Allylic Alcohols by C?H Bond Activation
Guo, Kai,Huang, Jun,Li, Anding,Li, Yuanhe,Yang, Zhen,Zhang, Zhongchao
supporting information, p. 11660 - 11668 (2020/05/25)
Photoredox-catalyzed isomerization of γ-carbonyl-substituted allylic alcohols to their corresponding carbonyl compounds was achieved for the first time by C?H bond activation. This catalytic redox-neutral process resulted in the synthesis of 1,4-dicarbonyl compounds. Notably, allylic alcohols bearing tetrasubstituted olefins can also be transformed into their corresponding carbonyl compounds. Density functional theory calculations show that the carbonyl group at the γ-position of allylic alcohols are beneficial to the formation of their corresponding allylic alcohol radicals with high vertical electron affinity, which contributes to the completion of the photoredox catalytic cycle.
Trans-selective conversions of γ-hydroxy-α,β-alkynoic esters to γ-hydroxy-α,β-alkenoic esters
Meta, Christopher T.,Koide, Kazunori
, p. 1785 - 1787 (2007/10/03)
Matrix presented. γ-Hydroxy-α,β-acetylenic esters are used as precursors to prepare γ-hydroxy-α,β-alkenoic esters by means of trans-selective additions of two hydrogen atoms or one hydrogen atom and one iodine atom across the triple bonds. These methods a
A novel and simple method to prepare γ-hydroxy-α,β-(E)-alkenoic esters from γ-keto-alkynoic esters
Naka, Tadaatsu,Koide, Kazunori
, p. 443 - 445 (2007/10/03)
A method to convert γ-keto-alkynoic esters to γ-hydroxy-α,β-(E)-alkenoic esters is described. This functional group transformation was accomplished in one step by means of NaBH4 reduction in methanol.
A general method for the preparation of 2,3,5-trisubstituted-furo[3,2-b]pyridines
Mathes, Brian M.,Filla, Sandra A.
, p. 725 - 728 (2007/10/03)
The preparation of 2,3,5-trisubstituted-furo[3,2-b]pyridines via a Pd(0)-catalyzed intramolecular cyclization of methyl 4-(6-chloro-2-iodopyridin-3-yloxy)-substituted-butenoates 9a-f is described. This approach was both efficient and general, and provided the highly functionalized heterocyclic ring system in high yield. Among the several examples provided is the preparation of 3-[2-(N,N-dimethylamino)ethyl]-5-(4-fluorobenzoyl)amino-2-methylfuro[3,2-b] pyridine 4, a selective 5-HT1F receptor agonist.
