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Chiral Poly(9,9′‐spirobifluorene) Crown Ethers
Author(s) -
Dobler Max,
Dumić Miljenko,
Egli Martin,
Prelog Vladimir
Publication year - 1985
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198507921
Subject(s) - catalysis , phase (matter) , crystal structure , chemistry , crystal (programming language) , polymer chemistry , crystallography , stereochemistry , organic chemistry , materials science , computer science , programming language
26‐ to 104‐membered rings are the distinguishing features of the title compounds 1 , which are obtainable in good yields by phase transfer catalysis. The crystal structures of the known species with n1, m2 and nm2 differ greatly from each other. The novel compounds with n1, m4, 6, 8 and n2, m4 have also been isolated.