Ring-closure reactions. 19. Kinetics of formation of benzo-crown ethers by intramolecular nucleophilic substitution. A comparison between polyoxyethylene and …
G Illuminati, L Mandolini, B Masci
Index: Illuminati, Gabriello; Mandolini, Luigi; Masci, Bernardo Journal of the American Chemical Society, 1981 , vol. 103, # 14 p. 4142 - 4145
Full Text: HTML
Citation Number: 23
Abstract
Results The parent o-[w-bromopoly (oxaalky1)] phenols 1 were prepared by unambigous synthetic routes (see Experimental Section), so that contamination by oligomers of close molecular weight can be ruled out. It is worth noting that, as far as we are aware, benzo-48- crown-16 (3, x= 14) is the largest ring compound for which rate data have been obtained starting from an open chain precursor of well-defined molecular weight. Rate ...
Related Articles:
Application of the okahara cyclization to the preparation of crown ethers with aromatic units
[Czech, B.; Czech, A.; Bartsch, R. A. Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 341 - 343]
A practical synthesis of benzocrown ethers under phase-transfer catalysis conditions
[Bogaschenko, Tatyana; Basok, Stepan; Kulygina, Catherine; Lyapunov, Alexander; Lukyanenko, Nikolay Synthesis, 2002 , # 15 p. 2266 - 2270]
[Heterocycles, , vol. 68, # 11 p. 2375 - 2380]
[Journal of the American Chemical Society, , vol. 103, # 14 p. 4142 - 4145]
A practical synthesis of benzocrown ethers under phase-transfer catalysis conditions
[Bogaschenko, Tatyana; Basok, Stepan; Kulygina, Catherine; Lyapunov, Alexander; Lukyanenko, Nikolay Synthesis, 2002 , # 15 p. 2266 - 2270]