ChemInform Abstract: METHODE ZUR KONDENSATION VON DIACETYLEN MIT CARBONYLVERBINDUNGEN

Abstract

Beim Einleiten von Diacetylen (II) in eine Suspension des Anionenaustauschharzes AB‐17 in einem Keton (I) entstehen die tert. Carbinole (III) sowie die Glykole (IV).

Diacetylene: a candidate for industrially important reactions

“…224 It was shown that the anion-exchange resin AB-17-8P (OH) catalyses the condensation of diacetylene with carbonyl compounds. 226 Tetramethylammonium hydroxide also catalyses the reaction of diacetylene with formaldehyde. 227 The reaction with formaldehyde occurs smoothly at 20 ± 40 8C and yields, in addition to hexa-2,4diyne-1,6-diol (96), 1,3-dioxolanes 97 and 98 which are the products of subsequent reaction of formaldehyde with the diol 96 and 2,4-pentadiynol.…”