Catalyst‐free facile and efficient one‐pot synthesis of densely functionalized pyrroles and α‐amino ketones
作者:Sivarama Krishna Reddy Vanga、Hari Babu Bollikolla、V. V. Satyanarayana Peruri
DOI:10.1002/jhet.4227
日期:2021.3
An efficient catalyst‐free one‐pot three‐component synthesis of penta‐substituted pyrroles has been successfully developed. A variety of penta‐substituted pyrroles were straightforwardly synthesized from good to excellent yields (78%–93%) by using easily accessible starting materials under mild conditions. This protocol also provided α‐amino ketones in good yields (87%–98%) without column chromatography
SnCl2·2H2O-Catalyzed Solvent-Free Synthesis of α-Amino Ketones and Tetrasubstituted Pyrazines
作者:Fatemeh Tamaddon、Arefeh Dehghani Tafti
DOI:10.1055/s-0035-1561663
日期:——
α-amino ketones in excellent yields. While a similar reaction with aliphatic amines is applicable for the synthesis of substituted pyrazines, SnCl 2 ·2H 2 O permits versatility in the solvent-free reaction of α-hydroxy ketones with ammonium acetate to give the corresponding substituted pyrazines in good to excellent yields.
各种苯胺与α-羟基酮在SnCl 2 ·2H 2 O 催化下的无溶剂反应以优异的产率提供了α-氨基酮。虽然与脂肪胺的类似反应适用于合成取代的吡嗪,但 SnCl 2 ·2H 2 O 在 α-羟基酮与乙酸铵的无溶剂反应中具有多功能性,以良好到极好的产率得到相应的取代吡嗪。
Chemoselective Reductions of Imino Groups by Dibutyltin Chloride Hydride Complex
作者:Ikuya Shibata、Takayo Moriuchi-Kawakami、Daisuke Tanizawa、Toshihiro Suwa、Erika Sugiyama、Haruo Matsuda、Akio Baba
DOI:10.1021/jo971358p
日期:1998.1.1
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