Synthesis

Synthesis of olefinic crown diamides and their conversion into pyrazolino macrocycles: Promising photoluminescent crown compounds

RN Malhas, YA Ibrahim

Index: Malhas, Rana N.; Ibrahim, Yehia A. Synthesis, 2006 , # 19 p. 3261 - 3269

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Citation Number: 7

Abstract

Abstract Macrocyclic crown diamides with 16-or 24-membered rings containing E-and Z- olefinic double bonds were synthesized either by bisalkylation or by ring-closing metathesis (RCM) techniques. The two methods were evaluated and compared with regard to yield and to product stereochemistry. Isomerization of some Z-olefinic macrocycles to their corresponding E-isomers was achieved using Grubbs' catalyst second generation. Some ...