Europium(II) Complexes With Benzo-18-Crown-6
✍ Scribed by Przemysław Starynowicz; Krystyna Bukietyńska; Stanisław Gołąb; Witold Ryba-Romanowski; Jerzy Sokolnicki
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 87 KB
- Volume
- 2002
- Category
- Article
- ISSN
- 1434-1948
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Complexes between the heavier lanthanoid nitrates Ln(NO~3~)~3~ and 15‐crown‐5 (**1**) and 18‐crown‐6 (**2**) ethers were isolated and characterized. Both 1:1 and 4:3 complexes are formed with each Ln(III) ion, except in the case of Gd and **2**. The thermal transformation of the 1:1 complexes into t
## Abstract Acylation reactions of benzocrown ethers with __N__‐phthalimido‐protected derivatives of β‐alanine and 11‐aminoundecanoic acid, respectively, were investigated in acid catalysis by using the Eaton reagent. Deprotection of the obtained compounds by hydrazinolysis afforded derivatives wit