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Ring‐Chain Equilibrium between an [18]Cyclacene Derivative and a Ladder Oligomer
Author(s) -
Kintzel Oliver,
Luger Peter,
Weber Manuela,
Schlüter A.Dieter
Publication year - 1998
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/(sici)1099-0690(199801)1998:1<99::aid-ejoc99>3.0.co;2-c
Subject(s) - oligomer , chemistry , derivative (finance) , monomer , ring (chemistry) , condensation , chain (unit) , congener , polymer chemistry , computational chemistry , organic chemistry , thermodynamics , physics , astronomy , financial economics , economics , polymer
The synthesis of the AB‐type Diels‐Alder (DA) monomer 12 is reported whose self‐condensation leads to the formation of the linear ladder oligomer 17 and its cyclic congener 18 . 18 is the largest [ n ]cyclacene derivative known ( n = 18) and can be obtained by thermal treatment of 17 in yields of up to 45% utilizing the reversibility of the DA cyclization involved. 17 can be considered a “storage form” for 18 .