The Asymmetric Dialkylzinc Addition to Imines Catalyzed by [2.2]Paracyclophane-Based <i>N</i>,<i>O</i>-Ligands
作者:Stefan Dahmen、Stefan Bräse
DOI:10.1021/ja025831e
日期:2002.5.1
enantioselective dialkylzincaddition to imines in the presence of catalytic amounts of N,O-ligands is reported. N-formyl-alpha-(p-tolysulfonyl)benzylamines are the readily available starting materials easily obtained in a one-pot synthesis from benzaldehydes, formamide, and p-tolylsulfinic acid. Upon deprotonation, the sulfinate is eliminated to give the acyl imine. The acyl imines further react with
据报道,在催化量的 N,O-配体存在下,首次对亚胺具有高度对映选择性的二烷基锌加成。N-甲酰基-α-(对甲苯磺酰基)苄胺是容易获得的起始原料,可通过苯甲醛、甲酰胺和对甲苯基亚磺酸一锅法合成。去质子化后,亚磺酸盐被消除,得到酰基亚胺。在催化量的基于 [2.2] 对环芳烷的 N,O-配体 L 的存在下,酰基亚胺进一步与烷基锌试剂反应,产生具有优异产率和对映选择性的烷基化 N-(1-苯丙基)甲酰胺。
NOVEL FUSED PYRIDINE COMPOUNDS AS CASEIN KINASE INHIBITORS
申请人:BUTLER TODD W.
公开号:US20120157440A1
公开(公告)日:2012-06-21
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I:
and pharmaceutically acceptable salts thereof, wherein X, Y, A, R
4
, n, and R
7
are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
Selective Synthesis of Multifunctionalized 2,3-Dihydroinden-1-ones and 1,3-Dihydroisobenzofurans from the Reaction of <i>o</i>-Alkynylbenzaldehydes with Imines Steered by N-Heterocyclic Carbene/Copper(II) and N-Heterocyclic Carbene/Base Cascade Catalysis
作者:Ya-Li Ding、Shi-Ning Li、Ying Cheng
DOI:10.1021/acs.joc.8b01163
日期:2018.8.17
carbene/transition metal and N-heterocyclic carbene/base cascade catalysis in the reaction of o-alkynylbenzaldehydes with N-acylimines, demonstrating the example of reaction pathways steered by catalysts. Under the catalysis of a thiazole carbene/Et3N followed by Cu(OAc)2 in acetonitrile at ambient temperature, o-alkynylbenzaldehydes underwent reaction with N-acylimines that were generated in situ from N-((
我们在本文中报道了邻炔基苯甲醛与N-酰亚胺的反应中的N-杂环卡宾/过渡金属和N-杂环卡宾/碱级联催化,证明了催化剂控制的反应途径的实例。在环境温度下,在乙腈中噻唑卡宾/ Et 3 N和Cu(OAc)2的催化下,邻炔基苯甲醛与由N -((芳基)(甲苯磺酰基)甲基)原位生成的N-嘧啶反应酰胺产生一对Z-和E-2-酰胺基-3-亚苄基-1-茚满酮的总产率为47-92%。另一方面,相同的底物在噻唑卡宾和Cs 2 CO 3存在下的反应在54–89中提供了(1 E,3 Z)-1-酰胺基亚苄基-3-苄基-1,3-二氢异苯并呋喃%产率。
Functionalized amido ketones: new anticonvulsant agents
作者:C BEGUIN
DOI:10.1016/s0968-0896(03)00434-6
日期:2003.9
We have reported that functionalized amino acids (FAA) are potent anticonvulsants. Replacing the N-terminal amide group in FAA with phenethyl, styryl, and phenylethynyl units provided a series of functionalized amido ketones (FAK). We show that select FAK exhibit significant anticonvulsant activities thereby providing information about the structural requirements for FAA and FAK bioactivity. (C) 2003 Elsevier Ltd. All rights reserved.
Synthesis of α-Amido Ketones via Organic Catalysis: Thiazolium-Catalyzed Cross-Coupling of Aldehydes with Acylimines
作者:Jerry A. Murry、Doug E. Frantz、Arash Soheili、Richard Tillyer、Edward J. J. Grabowski、Paul J. Reider