Intermolecular Hydroamination of 1,3-Dienes Catalyzed by Bis(phosphine)carbodicarbene–Rhodium Complexes
作者:Matthew J. Goldfogel、Courtney C. Roberts、Simon J. Meek
DOI:10.1021/ja502275w
日期:2014.4.30
(CDC)-based pincer ligand scaffold is reported, along with its application to site-selective Rh(I)-catalyzed intermolecular hydroamination of 1,3-dienes with aryl and alkyl amines. To the best of our knowledge, this is the first example of the use of a well-defined CDC complex as an efficient catalyst. Transformations proceed in the presence of 1.0-5.0 mol % Rh complex at 35-120 °C; allylic amines are obtained
[EN] BIS(PHOSPHINE)-CARBODICARBENE CATALYST COMPLEXES AND METHODS OF USING THE SAME<br/>[FR] COMPLEXES CATALYTIQUES DE TYPE BIS(PHOSPHINE)CARBODICARBÈNE ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV NORTH CAROLINA
公开号:WO2015159225A1
公开(公告)日:2015-10-22
An organometallic complex of a tridentate bis(phosphine)-carbodicarbene ligand and a transition metal, is described. In some embodiments the ligand has the structure of Formula (I): The complexes are useful in methods of making an allylic amine carried out by reacting a 1,3-diene with a substituted amine in the presence of such an organometallic complex to produce by intermolecular hydroamination the allylic amine.
Formal total synthesis of (.+-.)-pseudomonic acids A and C. The quasi-intramolecular Lewis acid catalyzed Diels-Alder reaction
作者:Barry B. Snider、Gary B. Phillips、Robert Cordova
DOI:10.1021/jo00166a013
日期:1983.9
BIS(PHOSPHINE)-CARBODICARBENE CATALYST COMPLEXES AND METHODS OF USING THE SAME
申请人:The University of North Carolina at Chapel Hill
公开号:US20170029453A1
公开(公告)日:2017-02-02
An organometallic complex of a tridentate bis(phosphine)-carbodicarbene ligand and a transition metal, is described. In some embodiments the ligand has the structure of Formula (I): The complexes are useful in methods of making an allylic amine carried out by reacting a 1,3-diene with a substituted amine in the presence of such an organometallic complex to produce by intermolecular hydroamination the allylic amine.
Intramolecular Diels−Alder Reactions Using α-Methylene Lactones as Dienophile
作者:Frank Richter、Matthias Bauer、Caroline Perez、Cäcilia Maichle-Mössmer、Martin E. Maier
DOI:10.1021/jo016116a
日期:2002.4.1
were prepared and reacted in the presence of zinc metal with ethyl 2-bromomethylacrylate to provide in a Reformatsky-like reaction alpha-methylene lactones carrying a dienyl side chain. Thermolysis of these compounds (11, 21, 29, and 37) gave in an intramolecularDiels-Alderreaction the corresponding tricyclic cycloadducts (51, 52, 53, and 54). The cycloadditions took place with good diastereoselectivity