| 21. | This annulation provides an efficient route to form an aromatic ring in one step.
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| 22. | Lignin confers the hydrophobic properties reflecting the fact that it is based on aromatic rings.
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| 23. | These chemical shifts are influenced by aromatic ring current and may change depending on substituents.
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| 24. | In the Buchner ring expansion diazo compounds react with aromatic rings with ring-expansion.
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| 25. | Gold catalyses the alkylation of certain aromatic rings and a conversion of furans to phenols.
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| 26. | It is a six-membered heterocyclic aromatic ring, one of several isomeric triazines.
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| 27. | All have a sulfhydryl group (-SH ) covalently bonded to an aromatic ring.
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| 28. | For especially electron-rich aromatic rings, the reaction will proceed without a Lewis acid.
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| 29. | This suggests that aromaticity is not a strict requirement for favorable interaction with an aromatic ring.
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| 30. | Previously called BKT140, it is a synthetic cyclic 14-residue peptide with an aromatic ring.
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