Second generation of calix[6]aza-Cryptands: synthesis of heteroditopic receptors for organic ion pairs.
Identifieur interne : 000248 ( PubMed/Corpus ); précédent : 000247; suivant : 000249Second generation of calix[6]aza-Cryptands: synthesis of heteroditopic receptors for organic ion pairs.
Auteurs : Stéphane Le Gac ; Mickaël Ménand ; Ivan JabinSource :
- Organic letters [ 1523-7052 ] ; 2008.
English descriptors
- KwdEn :
- MESH :
- chemical , chemical synthesis : Calixarenes, Ethers, Cyclic.
- chemical , chemistry : Methenamine.
- Magnetic Resonance Spectroscopy.
Abstract
The efficient syntheses of calix[6]azacryptands decorated with anion-binding groups on the narrow rim have been achieved from an 1,3,5-tris-protected calix[6]hexa-amine. These heteroditopic receptors can bind ammonium ions or organic ion pair salts with a positive cooperativity. In regard to their functionalization at the 1,3,5-phenolic positions, these compounds constitute the first examples of a second generation of C3 v symmetrical calix[6]azacryptands.
DOI: 10.1021/ol8021726
PubMed: 18939804
Links to Exploration step
pubmed:18939804Le document en format XML
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These heteroditopic receptors can bind ammonium ions or organic ion pair salts with a positive cooperativity. In regard to their functionalization at the 1,3,5-phenolic positions, these compounds constitute the first examples of a second generation of C3 v symmetrical calix[6]azacryptands.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18939804</PMID><DateCreated><Year>2008</Year><Month>11</Month><Day>17</Day></DateCreated><DateCompleted><Year>2008</Year><Month>12</Month><Day>15</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1523-7052</ISSN><JournalIssue CitedMedium="Internet"><Volume>10</Volume><Issue>22</Issue><PubDate><Year>2008</Year><Month>Nov</Month><Day>20</Day></PubDate></JournalIssue><Title>Organic letters</Title><ISOAbbreviation>Org. Lett.</ISOAbbreviation></Journal><ArticleTitle>Second generation of calix[6]aza-Cryptands: synthesis of heteroditopic receptors for organic ion pairs.</ArticleTitle><Pagination><MedlinePgn>5195-8</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/ol8021726</ELocationID><Abstract><AbstractText>The efficient syntheses of calix[6]azacryptands decorated with anion-binding groups on the narrow rim have been achieved from an 1,3,5-tris-protected calix[6]hexa-amine. These heteroditopic receptors can bind ammonium ions or organic ion pair salts with a positive cooperativity. 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