The Novel Phosphadiazacalixcrown Compounds |
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Authors: | Igor S. Antipin Ivan I. Stoikov Grigory N. Nikonov Alexander I. Konovalov |
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Affiliation: | Department of Organic Chemistry , Kazan State University , Kazan , 420008 , RUSSIA |
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Abstract: | Abstract A new series of calixcrown compounds (11) containing some VA group elements (N, P) was synthesized. 1.3-bis-(aminoethoxy) calix[4]arene (I) was used as starting platform for the preparation of calixcrown compounds. Reaction of (I) with bis(a-hydroxyalky1)phenylphosphines in toluene lead to phosphadiazacalixcrown compounds (11). All obtained receptors are hydrolytic stable and are not oxidized by air. A more convenient synthesis of (II) involves treatment of (I) with 2.5-diphenyl-1.3.2.5-dioxaboraphosphorinanes (III) which are stable on air unlike bis-(a-hydroxyalkyl) phenylphosphines. Structure of obtained macrocycles was established by 1H and 31P NMR spectroscopy. |
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