Spiro indane-1,3-dione pyrrolizidine compounds synthesized by 1,3-dipolar cyclo-addition reaction
作者:Gang Chen、Ya Wu、Xuefan Gu
DOI:10.1515/hc.2011.023
日期:2011.1.1
Spiro indane-1,3-dione pyrrolizidine compounds were synthesized by the 1,3-dipolar cyclo-addition reaction of ninhydrin, L-proline and two kinds of alkene (chalcone and (E)-beta-aryl-nitrostyrene). All these reactions proceeded with good yield and with high regio- and stereoselectivity. It was found that the use of two kinds of alkene lead to different regioselectivity. In the structure of D1 and D2, the electron-withdrawing group (EWG; benzoyl group) is attached to C-3 and the phenyl group is at C-4 of the newly constructed pyrrolidine. In the structure of D3-D7, the EWG (nitro group) is at C-4 and the phenyl group is at C-3 of the newly constructed pyrrolidine.
Synthesis of Spirooxindolo/Spiroindano Nitro Pyrrolizidines through Regioselective Azomethine Ylide Cycloaddition Reaction
Regio- and stereoselective 1,3-dipolar cycloaddition of indenoquinoxalinone azomethine ylides to β-nitrostyrenes: synthesis of spiro[indeno[1,2-b]quinoxaline-11,3'-pyrrolizidines] and spiro[indeno[1,2-b]quinoxaline-11,2'-pyrrolidines]
作者:Aleksey Yi. Barkov、Nikolay S. Zimnitskiy、Vladislav Yu. Korotaev、Igor B. Kutyashev、Vladimir S. Moshkin、Vyacheslav Ya. Sosnovskikh
DOI:10.1007/s10593-017-2074-0
日期:2017.4
from proline or sarcosine and indenoquinoxalinones reacted with nitrostyrenes upon heating in isopropanol for 4–5 days, resulting in the formation of spiro[indeno[1,2-b]quinoxaline-11,3'-pyrrolizidines] and spiro[indeno[1,2-b]-quinoxaline-11,2'-pyrrolidines] with various regiochemistry.
在脯氨酸或肌氨酸和茚并喹喔啉酮中原位 获得的甲亚胺基化物在异丙醇中加热4-5天后与硝基苯乙烯反应,从而形成螺[茚并[1,2 - b ]喹喔啉-11,3'-吡咯并核苷]和螺[茚并[1,2 - b ]-喹喔啉-1,2'-吡咯烷]具有多种区域化学作用。