Staudinger Ketene−Imine Cycloaddition, RCM Approach to Macrocrocyclic Bisazetidinones
摘要:
Application of Staudinger ketene-imine cycloaddition reaction to bis-o-allyloxyarylideneamines afforded the corresponding bisallyloxyazetidinones; as the cis-cis diastereomers, exclusively obtained as a mixture of cis-syn-cis and cis-anti-cis. RCM of the latter using Grubbs' catalysts afforded the corresponding macrocyclic bisazetidinones in good yields. The cis-anti-cis bisazetidinones are readily identified by H-1 NMR using Eu(hfC)(3) chiral shift reagent.
Staudinger Ketene−Imine Cycloaddition, RCM Approach to Macrocrocyclic Bisazetidinones
摘要:
Application of Staudinger ketene-imine cycloaddition reaction to bis-o-allyloxyarylideneamines afforded the corresponding bisallyloxyazetidinones; as the cis-cis diastereomers, exclusively obtained as a mixture of cis-syn-cis and cis-anti-cis. RCM of the latter using Grubbs' catalysts afforded the corresponding macrocyclic bisazetidinones in good yields. The cis-anti-cis bisazetidinones are readily identified by H-1 NMR using Eu(hfC)(3) chiral shift reagent.
BIS-(ALKYLSALICYLIDENE)ETHYLENE OR PHENYLENE DIAMINES AND TRANSITION METAL COMPLEXES THEREOF
申请人:HENKEL CORPORATION
公开号:EP0743937A1
公开(公告)日:1996-11-27
US5514823A
申请人:——
公开号:US5514823A
公开(公告)日:1996-05-07
[EN] BIS-(ALKYLSALICYLIDENE)ETHYLENE OR PHENYLENE DIAMINES AND TRANSITION METAL COMPLEXES THEREOF<br/>[FR] BIS-(ALKYLSALICYLIDENE)ETHYLENE OU PHENYLENE-DIAMINES ET COMPLEXES DE METAUX TRANSITOIRES DE CES DERNIERES
申请人:HENKEL CORPORATION
公开号:WO1995021152A1
公开(公告)日:1995-08-10
(EN) Preparation of N,N'-bis(alkylsalicylidene)ethylene or phenylene diamines, and transition metal complexes thereof, particularly copper, and their use as an additive to diesel fuel to reduce soot formation in diesel exhaust.(FR) Cette invention concerne la préparation de N, N'-bis(alkylsalicylidène)éthylène ou phénylène-diamines et les complexes de métaux transitoires de ces dernières, notamment de cuivre, ainsi que leur utilisation comme additif pour carburant Diesel pour réduire la formation de suie dans l'échappement d'un moteur Diesel
Staudinger Ketene−Imine Cycloaddition, RCM Approach to Macrocrocyclic Bisazetidinones
作者:Yehia A. Ibrahim、Talal F. Al-Azemi、Mohamed D. Abd El-Halim、Elizabeth John
DOI:10.1021/jo9006392
日期:2009.6.5
Application of Staudinger ketene-imine cycloaddition reaction to bis-o-allyloxyarylideneamines afforded the corresponding bisallyloxyazetidinones; as the cis-cis diastereomers, exclusively obtained as a mixture of cis-syn-cis and cis-anti-cis. RCM of the latter using Grubbs' catalysts afforded the corresponding macrocyclic bisazetidinones in good yields. The cis-anti-cis bisazetidinones are readily identified by H-1 NMR using Eu(hfC)(3) chiral shift reagent.