已经发现三氟乙酸是用于串联克莱森重排和环化反应以从由S N 2反应获得的化合物产生3-芳基亚甲基-3,4-二氢-1 H-喹啉-2-酮的高效和高效试剂。DABCO存在下苯胺与丙烯酸Bayis-Hillman加合物的乙酰基衍生物之间的关系。相反,在三氟乙酸处理下,从Baylis-Hillman丙烯腈加成物的乙酰基衍生物获得的类似化合物通过串联Claisen重排,环化和异构化直接提供3-芳基甲基-2-氨基-喹啉。
Propanoic acid derivatives that inhibit the binding of integrins to their receptors
申请人:Texas Biotechnology Corporation
公开号:US06723711B2
公开(公告)日:2004-04-20
A compound of the structure
A method for the inhibition of the binding of &agr;4&bgr;1 integrin to its receptors, for example VCAM-1(vascular cell adhesion molecule-1) and fibronectin; pharmaceutically active compositions comprising these compounds; and the use of these compounds for the control or prevention of diseases states in which &agr;4&bgr;1 is involved are also disclosed.
Synthesis of 3-Alkyl-1<i>H</i>-quinolin-2-ones via Palladium-Catalyzed Intramolecular Cyclization of Benzyl Halides and α,β-Unsaturated Amides
作者:Yuanwei Chen、Zhangqin Liu、Changqing Shi
DOI:10.1055/s-2008-1077875
日期:——
An efficient synthesis of 3-alkyl-1 H-quinolin-2-ones was achieved in high yield (up to 91%) via Pd 2 (dba) 3 -catalyzed intramolecularcyclization of benzyl halides and electron-deficient olefins, followed by treatment with DBU.
The natural enzyme cytochrome P450 is widely recognised for its unique ability to catalysehighlyselective oxygen insertion reactions into unactivated C–H bonds under mild conditions. Its exceptional potential for organic synthesis served as an inspiration for the presented biomimetic hydroxylation approach. Via a remote hydrogen bonding motif a high enantioselectivity in the manganese-catalysed oxygenation
An iron porphyrin that is linked via an ethynyl unit to a chiral octahydro-1H-4,7-methanoisoindol-1-one scaffold serves as a potent catalyst for the enantioselective, visible light-mediated intermolecular amination of 3-arylmethyl-substituted quinolones and pyridones. A two-point hydrogen bonding interaction is responsible for the exquisite site- and enantioselectivity of the reaction.
通过乙炔基单元与手性八氢-1 H -4,7-methanoisoindol-1-one 支架连接的铁卟啉可作为对映选择性、可见光介导的 3-芳基甲基取代喹诺酮分子间胺化的有效催化剂和吡啶酮。两点氢键相互作用决定了反应的精确位点选择性和对映选择性。
Chemical transformation of Baylis–Hillman adducts: the reaction of methyl 3-arylamino-2-methylene-3-phenylpropanoates in polyphosphoric acid
作者:Chang Gon Lee、Ka Young Lee、Sangku Lee、Jae Nyoung Kim
DOI:10.1016/j.tet.2004.11.082
日期:2005.2
We synthesized some interesting compounds including 3-benzylidene-3,4-dihydro-1H-quinolin-2-one. 3-benzylquinolin-2-ol. 4-amino-2-benzylideneindan-1-one, and 1-amino-9a.10-dihydro-4bH-indeno[1,2-a]inden-9-one skeletons starting from Baylis-Hillman adducts. (C) 2004 Elsevier Ltd. All rights reserved.