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Stabilized cis ‐Tris‐σ‐homobenzenes: Syntheses, [σ2 + σ2 + σ2] Cycloreversions
Author(s) -
Braschwitz Wolf Dieter,
Otten Thomas,
Rücker Christoph,
Fritz Hans,
Prinzbach Horst
Publication year - 1989
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.198913481
Subject(s) - tris , chemistry , stereochemistry , combinatorial chemistry , medicinal chemistry , biochemistry
Gram quantities of 3, 6, 9‐trisubstituted trishomobenzenes 2 , R CO 2 CH 3 , CN, etc., are accessible by successive assembly ofunits, starting with trioxide 1 . A [σ2 + σ2 + σ2] cycloreversion of 2 leads to clean formation of the 1, 4, 7‐trisubstituted cis, cis, cis ‐cyclononatrienes 3 .