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A Photochemically “Switched‐on” Crown Ether Containing an Intraannular 4‐Methoxyphenylazo Substituent
Author(s) -
Shinkai Seiji,
Miyazaki Kiminori,
Manabe Osamu
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.198508661
Subject(s) - substituent , crown ether , chemistry , ring (chemistry) , phenylene , ether , ion , metal , crown (dentistry) , medicinal chemistry , polymer chemistry , stereochemistry , photochemistry , materials science , organic chemistry , composite material , polymer
The binding of metal ions can be hindered by the intraannular 4‐methoxyphenylazo substituent in dibenzo[18]crown‐6 analogues in which a CH 2 OCH 2 group is replaced by a (substituted) m ‐phenylene ring. When the substituent is photochemically flipped out of the cavity, metal ions may be complexed in the manner characteristic of crown ethers.