The syntheses of 1,1′-, 9,9′-, and 1,9′-dianthryl-, 2,2′-, 3,3′-, and 9,9′-diphenanthryl-, 1,1′-and 2,2′-dipyrenyl-, and 6,6′-dichrysenylacetylenes according to the pyrolytic reactions of the corresponding β-ketoalkylidenetriphenylphosphorane derivatives (intramolecular Wittig reaction) were described.
Etudes cinétiques dans le domaine des dérivés polycycliques aromatiques VIII. Alcoolyse des chlorures d'acides d'hydrocarbures polycycliques aromatiques condensés
作者:G. Geuskens、M. Planchon、J. Nasielski、R. H. Martin
DOI:10.1002/hlca.19590420222
日期:——
ARRHENIUS parameters have been determined for the solvolysis of a series of acid chlorides of polycyclic aromatic hydrocarbons in methanol-acetone (1:1) (Table 11). The fact that the solvolyses were carried out at an average temperature (275°K)situated above the isokinetic temperature (estimated to be 220°K) explains why the sequence observed is the reverse of the one obtained in the case of the alkaline