据报道成功合成了新的四氢嘧啶基[4,5- b ] [1,6]萘啶衍生物。通过1-苄基-4-哌啶酮与芳香醛的Knoevenagel缩合制得的1-苄基-3,5-双[(E)-芳基亚甲基]四氢吡啶-4-4(1 H)-在乙酸中与6-氨基尿嘧啶缩合生成提供所需的产品。通过分析数据和X射线晶体学分析确认产物的结构。
successful synthesis of novel spirofused spiropyrrolidine 1,3-indanedione derivatives using 1,3-dipolar cycloadditionreactions is reported. 1-Benzyl-3,5-bis[(E)-arylmethylidene]tetrahydro-4(1H)-pyridinones prepared via Knöevenagel condensation of 1-benzyl-4-piperidinone with aromatic aldehydes underwent a one-pot, three-component reaction with benzylamines and ninhydrin in ethanol to afford the desired products
A library of novel bis-spiropiperidone–tetrahydrothiophene hybrid heterocycles have been synthesized via pseudo-three-component dominoreaction of (3 E ,5 E )-3,5-bis(arylidene)-1-methyl/benzyl piperidin-4-ones and 1,4-dithiane-2,5-diol in the presence of triethylamine. This transformation presumably proceeds via two annulations each involving the generation of 2-mercaptoacetaldehyde from 1,4-dithiane-2
通过 (3 E ,5 E )-3,5-双(亚芳基)-1-甲基/苄基哌啶-4-酮的假三组分多米诺反应合成了新型双螺哌啶酮-四氢噻吩杂环化合物库和 1,4-二噻烷-2,5-二醇在三乙胺的存在下。这种转化大概是通过两个环化进行的,每个环化都涉及从 1,4-二噻烷-2,5-二醇-迈克尔加成-分子内醛醇序列生成 2-巯基乙醛,这导致在一锅操作中产生四个新键。该协议的优点是原子经济性高、立体选择性高、反应时间短、操作简单。
Curcumin Analogs and Methods of Making and Using Thereof
申请人:Georgia State University Research Foundation.Inc.
公开号:US20150152056A1
公开(公告)日:2015-06-04
Compounds having Formula I or II, and methods of making and using thereof, are described herein:
本文描述了具有I或II式的化合物及其制备和使用方法:
Multi-component, 1,3-dipolar cycloaddition reactions for the chemo-, regio- and stereoselective synthesis of novel hybrid spiroheterocycles in ionic liquid
作者:Stephen Michael Rajesh、Balasubramainan Devi Bala、Subbu Perumal
DOI:10.1016/j.tetlet.2012.07.078
日期:2012.10
A library of novel 1-methyl-4-arylpyrrolo-(spiro(2.2']indan-1',3'-dione)-spiro[3.3 '']-1 ''-methyl/benzyl-5 ''-(arylmethylidene)piperidin-4 ''-ones and 1-methyl-4-arylpyrrolo-(spiro[2.11']-11H-indeno(1,2-b]quinoxaline)-spiro[3.3 '']-1 ''-methyl/benzyl-5 ''-(arylmethylidene)piperidin-4 ''-ones have been synthesized via 1,3-dipolar azomethine ylide cycloaddition in the ionic liquid, 1-butyl-3-methylimidazolium bromide ([BMIm]Br), in excellent yields. (C) 2012 Elsevier Ltd. All rights reserved.