| Autor: |
Dong Z; Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA., Plampin JN 3rd, Yap GP, Fox JM |
| Jazyk: |
angličtina |
| Zdroj: |
Organic letters [Org Lett] 2010 Sep 17; Vol. 12 (18), pp. 4002-5. |
| DOI: |
10.1021/ol101583v |
| Abstrakt: |
(S)-1-Methylindan end groups are effective controllers of absolute helicity in Ni-salen- and Ni-salophen-based foldamers derived from (R,R)-trans-1,2-cyclohexanediamine and 1,2-phenylenediamine, respectively. Evidence for the helicity of the described complexes was provided through X-ray crystallography and study of chiroptical properties in solution. The chiral end groups control the absolute sense of helicity for the salen complexes, even in a case where the helical bias of the end group is mismatched relative to that of the internal diamine. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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