通过分子内Diels-Alder反应,由2,6-二呋喃基取代的哌啶-4-酮与马来酸酐或丙烯酰氯直接合成8,10a-环氧吡啶并[2,1- a ]异吲哚及其7-羧酸已经证明。已经表明,标题化合物的一步合成可以在温和的条件下进行,并且具有从容易获得的2-呋喃基哌啶中高水平的区域选择性和立体选择性。 分子内Diels-Alder呋喃反应-IMDAF-立体选择性合成-呋喃-2,6-二呋喃哌啶-4-酮-吡啶并[2,1- a ]异吲哚
通过还原顺-3-烷基-2,6-合成了一系列新的(2 S,3 R,4 S,6 R)-3-甲基-4-烷基-2,6-二芳基哌啶-4-醇。使用格氏试剂制备二芳基哌啶-4-酮。基于IR,1 H NMR,13 C NMR,NOESY和质谱研究建立了合成化合物的结构分配和构象研究。研究了它们的立体化学作用对抗菌,抗真菌和驱虫活性的影响。
[4+2] Cycloaddition of α,β-unsaturated acid anhydrides to 2-furylpiperidin-4-ones: The short route to annulated 8,10a-epoxypyrido[2,1-<i>a</i>]isoindoles
作者:Fedor I. Zubkov、Inga K. Airiyan、Anastasiya A. Dzyubenko、Nataliya I. Yudina、Vladimir P. Zaytsev、Eugeniya V. Nikitina、Alexey V. Varlamov、Victor N. Khrustalev、Dmitry G. Grudinin
DOI:10.1002/jhet.316
日期:——
their 7‐carboxylic derivatives is reported. The key synthetic step includes the intramolecular exo‐Diels–Alder reaction (IMDAF) of N‐furfurylacrylamide, produced in situ from 2‐furylpiperidin‐4‐ones and α,β‐unsaturated acid anhydrides. The synthesis of the title compounds can be performed under mild conditions with a high level of regio‐ and stereoselectivity. The same strategy has been successfully
报道了一步一步制备8,10a-环氧吡啶并[2,1- a ]异吲哚及其7-羧酸衍生物的方法。关键的合成步骤包括N-糠基丙烯酰胺的分子内exo -Diels-Alder反应(IMDAF),它是由2-糠基哌啶-4-酮和α,β-不饱和酸酐原位产生的。标题化合物的合成可以在温和条件下进行,具有很高的区域和立体选择性。从马来酸酐和菠菜碱衍生物合成4,9,11a-环氧咪唑并[4',5':3,4]吡啶[2,1- a ]异吲哚-8-羧酸已成功采用了相同的策略– 4 -(2-呋喃基)-4,5,6,7-四氢-3 H-咪唑[4,5- c]吡啶。J.杂环化学。(2010)。
Synthesis and Antimicrobial Evaluation of Some t(3)-Alkyl and t(3),t(5)-Dimethyl-r(2),c(6)-DI-2′-Furfurylpiperidin-4-one and its Derivatives
作者:J. Jayabharathi、R. Sivakumar、A. Praveena
DOI:10.1007/s00044-005-0134-y
日期:2005.6
Some novel t(3)-alkyl and t(3),t(5)-dimethyl-r(2),c(6)-di-2′-furfurylpiperidin-4-one derivatives were synthesized and their antibacterial activity against Streptococcus faecalis, Bacillus subtilis and Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae and antifungal activity against Cryptococcus neoformans, Candida 6, Candida 51, Asperigillus niger and Aspergillus flavus evaluated.
Some novel N (1)-arylidene- N (2)- t (3)-methyl-r(2), c (6)-diarylpiperidin-4-one azine derivatives were synthesized and their antibacterial activity against Streptococcus faecalis, Bacillus subtilis , Escherichia coli, Pseudomonas aeruginosa , and Staphylococcus aureus and antifungal activity against Candida- 6, Candida- 51, Aspergillus niger , and Aspergillus flavus evaluated.