117745-54-7Relevant articles and documents
Fluorogenic Diels-Alder reactions of novel phencyclone derivatives
Aydin, Engin Aytac,Altenbach, Hans-Josef
supporting information, p. 1832 - 1834 (2013/05/08)
With the aim of obtaining fluorogenic Diels-Alder reactions, novel phencyclone derivatives were synthesized. In a short time and under convenient reaction conditions, the formation of Diels-Alder adducts was observed by color-change and up to 33-fold enhancement of fluorescence. The modification of thymidine and deoxycytidine derivatives with a maleimide side chain and their usage in fluorogenic Diels-Alder reaction is also reported.
Synthesis of Alkyl- and Alkoxy-Substituted Benzils and Oxidative Coupling to Tetraalkoxyphenanthrene-9,10-diones
Mohr, Bernhard,Enkelmann, Volker,Wegner, Gerhard
, p. 635 - 638 (2007/10/02)
Intermolecular Friedel-Crafts acylation of various substituted alkyl- or alkoxybenzenes with oxalyl chloride using carbon disulfide as solvent gave rise to the benzils 1a-k.Subsequent intramolecular oxidative coupling with either thallium(III) oxide/trifluoroacetic acid or vanadium(V) oxyfluoride/boron trifluoride diethyl etherate resulted in the corresponding phenanthrene-9,10-diones 2a-d.It has been shown that oxygen functionalities at the 3,3',4, and 4'positions are necessary for coupling to occur.These substituted benzils and phenanthrene-9,10-diones constitute precursors for ligands in the field of discotic metallomesogens or polymeric mesogens.