Chiral calixsalen-type macrocycles from
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M. Kwit; J. Gawronski
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Article
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2003
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Elsevier Science
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English
⚖ 169 KB
3b from the [3+3] cyclocondensation of trans-1,2-diaminocyclohexane 1 with hydroxydialdehydes 2a or 2b have vase-like structures.