SUBSTITUTED PYRROLIDINE AMIDES, THE PRODUCTION THEREOF, AND THE USE THEREOF AS MEDICATIONS
申请人:Gerlach Kai
公开号:US20100099664A1
公开(公告)日:2010-04-22
The object of the present invention is novel substituted pyrrolidine amides of the general formula (I) in which D, L. E, G, J, M, L
1
, L
2
, R
4
, and R
5
are defined as in the specification, the tautomers, enantiomers, diastereomers, mixtures, and salts thereof, particularly physiologically tolerated salts with inorganic or organic acids or bases having valuable properties.
A diversity-oriented synthesis of polyheterocycles <i>via</i> the cyclocondensation of azomethine imine
作者:Arshad J. Ansari、Ramdas S. Pathare、Anita Kumawat、Antim K. Maurya、Sarika Verma、Vijai K. Agnihotri、Rahul Joshi、Ramesh K. Metre、Ashoke Sharon、R. T. Pardasani、Devesh M. Sawant
DOI:10.1039/c9nj02874a
日期:——
reactions to afford skeletally diverse molecules are described. The reaction involved azomethineimine formation and a cyclocondensation reaction as individual steps. The methodology provides excellent regio- and stereocontrol. Skeletal diversity was ensured by changing the electrophilic counterpart of azomethineimine. Due to its broader diversity and complexity, the DOS methodology is likely to benefit
Nano CoFe<sub>2</sub>O<sub>4</sub> supported antimony(<scp>iii</scp>) as an efficient and recyclable catalyst for one-pot three-component synthesis of multisubstituted pyrroles
A novelmagnetic nano-CoFe2O4 supported Sb ([CoFe2O4@SiO2–DABCO–Sb]) was successfully constructed, which exhibited high catalytic activity for one-potthree-componentsynthesis of multisubstituted pyrroles in the reaction of amines, nitroolefin and 1,3-dicarbonyl compounds. The magneticheterogeneouscatalyst could be easily recovered using an external magnet and reused many times without significant
成功地构建了一种新型的磁性纳米CoFe 2 O 4负载的Sb([CoFe 2 O 4 @SiO 2 –DABCO-Sb]),该催化剂对多取代吡咯的一锅三组分合成具有很高的催化活性。胺,硝基烯烃和1,3-二羰基化合物。磁性非均相催化剂可以使用外部磁体容易地回收,并且可以多次重复使用而不会显着降低催化活性。
Iridium-catalyzed highly chemoselective and efficient reduction of nitroalkenes to nitroalkanes in water
作者:Dong Xu、Yang Chen、Changmeng Liu、Jiaxi Xu、Zhanhui Yang
DOI:10.1039/d1gc01907d
日期:——
An iridium-catalyzed highly chemoselective and efficient transfer hydrogenation reduction of structurally diverse nitroalkenes was realized at very low catalyst loading (S/C = up to 10000 or 20 000), using formic acid or sodium formate as a traceless hydride donor in water. Excellent functionality tolerance is also observed. The turnover number and turnover frequency of the catalyst reach as high as
在非常低的催化剂负载量(S/C = 高达 10000 或 20 000)下,使用甲酸或甲酸钠作为水中的无痕氢化物供体,实现了铱催化的高化学选择性和高效转移氢化还原结构多样的硝基烯烃。还观察到优异的功能耐受性。催化剂的周转次数和周转频率高达18 600和19 200 h -1, 分别。不需要惰性气氛保护。硝基烯烃的反应性取决于它们的取代模式,pH 值是实现完全转化和优异化学选择性的关键因素。产品的纯化通过简单的萃取实现,无需柱层析。还原过程在 10 000 S/C 比率下轻松放大到 10 g 规模。这种绿色还原在对映选择性氢化中的潜力已经得到证实。
Synthesis of Benzo[4,5]imidazo[2,1-<i>b</i>
]thiazole by Copper(II)-Catalyzed Thioamination of Nitroalkene with 1<i>H</i>
-Benzo[<i>d</i>
]imidazole-2-thiol
作者:Sourav Jana、Amrita Chakraborty、Valerii Z. Shirinian、Alakananda Hajra
DOI:10.1002/adsc.201800393
日期:2018.6.15
A Copper(II)‐catalyzed thioamination of β‐nitroalkene with 1H‐benzo[d]imidazole‐2‐thiol has been developed for the synthesis of benzo[4,5]imidazo[2,1‐b]thiazole derivatives. A variety of N‐fused benzoimidazothiazole derivatives are obtained in high yields through successive C−N and C−S bond formations. This protocol is also applicable to β‐substituted β‐nitroalkenes to afford 2,3‐disubstituted benzoimidazothiazoles
已开发出一种铜(II)催化的β-硝基烯烃与1 H-苯并[ d ]咪唑-2-硫醇的硫胺化反应,用于合成苯并[4,5]咪唑并[2,1– b ]噻唑衍生物。通过连续的CN和CS键形成,可以高收率获得各种N稠合的苯并咪唑并噻唑衍生物。该方案也适用于β-取代的β-硝基烯烃,以提供2,3-二取代的苯并咪唑并噻唑。