Synthesis, Reactions and Antitumor Activity of Certain 1,3-diphenylpyrazole-4-carboxaldehyde Derivatives
作者:Sebaey Mahgoub、Atef Amer
DOI:10.21608/ejchem.2018.5328.1470
日期:2018.12.1
In continuation of our interest in synthesis of novel heterocycles with anticipated biological activity especially the antitumor activity. In this paper we have discussed synthesis and reaction of 1,3-diphenylpyrazol-4-carboxaldehyde 4 with acetophenone derivatives 1a–d, active methylene compounds, hydrazines and aniline derivatives to yield the expected derivatives 5a–d. Also, a series of penta-substituted
继续我们对合成具有预期生物活性特别是抗肿瘤活性的新型杂环的兴趣。在本文中,我们讨论了1,3-二苯基吡唑-4-甲醛4与苯乙酮衍生物1a-d,活性亚甲基化合物,肼和苯胺衍生物的合成和反应,以产生预期的衍生物5a-d。另外,在三乙胺的催化下,通过1,3-二苯基吡唑-4-甲醛1,丙二腈和硫醇衍生物13a-e的一锅三组分环缩合反应,合成了一系列五取代的吡啶衍生物15a-e。 。另外,由N-((1,3-二苯基-1H-吡唑)合成了2-(1,3-二苯基-1H-吡唑-4-基)-3-(芳基)噻唑烷-4-one 20a-e。 -4-基)亚甲基苯胺衍生物11a-e和巯基乙酸。筛选了一些合成的衍生物的抗肿瘤活性。所有新合成的化合物均已通过元素分析,IR,1 H NMR,13 C NMR,MS进行了表征,并在某些情况下通过与化合物的已知特性进行比较或与通过报告明确的路线制备的样品进行比较。
Green synthesis of novel 2-pyrazolyl-1,3-thiazolidine-4-ones using 2-oxoimidazolidine-1,3-disulfonic acid
Abstract 2-Oxoimidazolidine-1,3-disulfonic acid (OImDSA) is a recoverable catalyst for the synthesis of 1,3-thiazolidine-4-ones at room temperature in a one-pot procedure without using any organic solvents. Moreover, the catalyst can be easily recovered and recycled for five runs without significant loss of catalytic activity. The structures of the synthesized 1,3-thiazolidine-4-one compounds were
Magneticmultiwalledcarbonnanotube nanocomposite as a recoverable catalyst for the synthesis of novel 1,3‐thiazolidine‐4‐ones at room temperature in a one‐pot procedure without additional organic solvents. IR, 1HNMR, and 13CNMR spectroscopies and elemental analysis were used for the identification of these compounds. Moreover, the catalyst could be easily recovered by magnetic separation and recycled
Chary, T Jagan Mohana; Reddy, Ch V Narsimha; Murthy, A Krishna, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 8, p. 495 - 498
作者:Chary, T Jagan Mohana、Reddy, Ch V Narsimha、Murthy, A Krishna