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Versatile syntheses of functionalised 9,10-bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene derivatives

✍ Scribed by Martin R. Bryce; Terry Finn; Adrian J. Moore

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
233 KB
Volume
40
Category
Article
ISSN
0040-4039

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✦ Synopsis

Two new synthetic approaches to functionalised derivatives of the 9,10-bis(1,3-dithiol-2-ylidene)-9,10dihydroanthracene system are reported. A range of new derivatives bearing reactive substituents are described.

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Flash photolysis of bis [4,5di(methylsulfanyl)1,3-dithiol-2-ylidene]-9,10-dihydroanthracene (1) in chloroform leads to formation of the transient radical cation species 1 . which has a diagnostic broad absorption band at l max % 650 nm. This band decays to half its original intensity over a period o