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Synthesis of para ‐Aryl‐Substituted Salicyldialdehydes
Author(s) -
Reinhard Dennis,
Schöttner Ludger,
Brosius Victor,
Rominger Frank,
Mastalerz Michael
Publication year - 2015
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/ejoc.201500228
Subject(s) - chemistry , aryl , cryptand , fluorescence , combinatorial chemistry , borylation , absorption (acoustics) , photochemistry , organic chemistry , ion , alkyl , physics , quantum mechanics , acoustics
para ‐Substituted salicyldialdehydes are versatile molecular building blocks for porous organic cages, fluorescent dyes, spirobenzopyrans, homooxacalixarenes, dinuclear metal complexes, macrocycles, and cryptands. To date, no procedures for the synthesis of para ‐aryl‐substituted salicyldialdehydes have been reported, which would broaden the scope of the above‐mentioned topics, especially in the field of sensors and dyes, because the aromatic π systems can be enlarged and absorption or fluorescent events can be fine‐tuned by various substituents. Herein, two synthetic routes to para ‐aryl‐substituted salicyldialdehydes with both electron‐withdrawing and ‐donating aromatic units are reported.