ISSN:
1434-193X
Schlagwort(e):
Tetrasulfido[20]annulenes
;
Thiophenophanes
;
Porphycenes
;
Alkynes
;
McMurry coupling
;
Chemistry
;
General Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The syntheses of tetraalkynylated tetrasulfido[20]annulenes 2a-d are described. Treatment of the corresponding brominated tetrasulfido[20]annulene 5a (easily available by McMurry coupling of the brominated 2,2′-bithiophene-5,5′-dicarbaldehydes, 3a) with various acetylenes in the presence of Pd(II) and Cu(I) in NH(iPr)2 yields acetylenic tetrasulfido[20]annulenes 2a-d.
Materialart:
Digitale Medien
