Supramolecular complexes of L-alanyl-nitroanilide cation with crown ethers, involving tetraphenylborate as anion pair

被引:0
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作者
Luca, C
Covaci, IC
Caproiu, MT
Ionita, P
Maganu, M
Constantinescu, T
机构
[1] Polytech Univ Bucharest, Dept Analyt Chem, Bucharest, Romania
[2] Inst Phys Chem, Bucharest 77208, Romania
[3] Inst Organ Chem, NMR Dept, Bucharest, Romania
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中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The 3a, b and c supramolecular complexes of the [CE...H3N+R]BPh4- type (where H3N+R is the cation of L-alanyl-p-nitroanilide, BPh4- is the anion of tetraphenylborate and CE is a crown ether like 18C6, DCH18C6 or B18C6) were obtained in high yield, in solid state. The obtained supramolecular complexes were optically active and hydrophobic. The experimental results regarding the complex characteristics (UV, H-1-NMR, C-13-NMR and alpha(D)) and also their stability in water/methylene chloride biphasic system are presented.
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页码:469 / 472
页数:4
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