ISSN:
0009-2940
Keywords:
Key Words: Cyclophane
;
Pyridinophane
;
Polyene
;
Macrocycle
;
Kharash coupling reaction
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The new pyridinophanetetraene 4 has been prepared in a two-step synthesis by a modified Kharash coupling reaction of 2,6-bis[3-lithio-(E)-styryl]pyridine with copper(II) chloride. Starting from isomerically pure 2,6-bis[3-bromo-(E)-styryl]pyridine (3), the cyclization reaction takes place without rearrangement of the stilbazole double bonds. The electronic spectrum of 4 shows characteristic differences when compared to that of its open-chain analogue 2,6-bis[(E)-styryl]pyridine (7).
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19901231228
