Cyclooligomeric phenol-aldehyde condensa
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Holger Erdtman; Sverker HΓΆgberg; Sixten Abrahamsson; Bo Nilsson
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Article
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1968
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Elsevier Science
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French
β 196 KB
According to early observations (Baeyer (11, Michael (2). Liebermann and Lindenbaum (3) benzaldehyde condenses with resorcinol or pyrogallol in equimolar proportions under the influence of strong acids. The correct elementary composition of the very sparingly soluble,