319928-36-4Relevant academic research and scientific papers
A novel facile synthetic route to highly substituted 2,3-dihydrofurans via ammonium ylides
Yang, Zhanjun,Fan, Mingjin,Liu, Weimin,Liang, Yongmin
, p. 2188 - 2192 (2005)
Tetrasubstituted 2,3-dihydrofurans derivatives were prepared via the reaction of quaternary ammonium salts 1 with electrophilic alkenes 2 in the presence of powered K2CO3, usually in a stereoselective manner with good to high yields.
A facile synthesis of highly functionalized dihydrofurans based on 1,4-diazabicyclo[2.2.2]octane (DABCO) catalyzed reaction of halides with enones
Yang, Zhanjun,Fan, Mingjin,Mu, Ruizhu,Liu, Weimin,Liang, Yongmin
, p. 9140 - 9146 (2005)
Treatment of halides 5 with electrophilic alkenes 2 afforded the corresponding dihydrofurans 3 and 4 in the presence of 1, 4-diazabicyclo[2.2.2] octane (DABCO) with good to excellent yields and in a stereoselective manner in most cases. Moreover, the ster
Stereoselective synthesis of trans-β-substituted γ-ferrocenyl- γ-butyrolactones via ammonium ylides
Shi, Ling,Han, Yao,Yang, Zhanjun,Liu, Weimin,Liang, Yongmin
, p. 2851 - 2856 (2007/10/03)
trans-β-substituted γ-ferrocenyl-γ-butyrolactones were prepared via the reaction of quaternary ammonium salts with electron-deficient trisubstituted alkene 1 under the optimum conditions. Moderate to good yields and excellent trans stereoselectivity were achieved for the new compounds 2-10. The X-ray crystal structure of 2a was determined and all the products were characterized by 1H NMR, 13C NMR, FAB-MS, IR and HRMS spectra. Georg Thieme Verlag Stuttgart.
