Kuriyama, Y; Sasano, Y; Hoshino, Y; Uesugi, S; Yamaichi, A; Iwabuchi, Y in [Kuriyama, Yuse; Sasano, Yusuke; Hoshino, Yoshihiko; Uesugi, Shun-ichiro; Yamaichi, Aoto; Iwabuchi, Yoshiharu] Tohoku Univ, Dept Organ Chem, Grad Sch Pharmaceut Sci, Aoba Ku, 6-3 Aoba, Sendai, Miyagi 9808578, Japan published Highly Regioselective 5-endo-tet Cyclization of 3,4-Epoxy Amines into 3-Hydroxypyrrolidines Catalyzed by La(OTf)(3) in 2021, Cited 38. SDS of cas: 105-13-5. The Name is (4-Methoxyphenyl)methanol. Through research, I have a further understanding and discovery of 105-13-5.
Highly regioselective intramolecular aminolysis of 3,4-epoxy amines has been achieved. Key features of this reaction are (1) chemoselective activation of epoxides in the presence of unprotected aliphatic amines in the same molecules by a La(OTf)(3) catalyst and (2) excellent regioselectivity for anti-Baldwin 5-endo-tet cyclization. This reaction affords 3-hydroxy-2-alkylpyrrolidines stereospecifically in high yields. DFT calculations revealed that the regioselectivity might be attributed to distortion energies of epoxy amine substrates. The use of this reaction was demonstrated by the first enantioselective synthesis of an antispasmodic agent prifinium bromide.
SDS of cas: 105-13-5. Welcome to talk about 105-13-5, If you have any questions, you can contact Kuriyama, Y; Sasano, Y; Hoshino, Y; Uesugi, S; Yamaichi, A; Iwabuchi, Y or send Email.
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