Syntheses of hexabenzocoronene derivatives
SK Sadhukhan, C Viala, A Gourdon
Index: Sadhukhan, Subir K.; Viala, Christine; Gourdon, Andre Synthesis, 2003 , # 10 p. 1521 - 1525
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Citation Number: 16
Abstract
Abstract The syntheses of four hexabenzo [bc, ef, hi, kl, no, qr] coronene (HBC) derivatives have been carried out. Double Knoevenagel condensation of the benzil 5 with the ketone 6 gave the 2, 3, 4, 5-tetrakis (4-tert-butylphenyl) cyclopenta-2, 4-dien-1-one (7). Diels-Alder addition of 7 with di (4-tert-butylphenyl) acetylene, 4-[(4-tert-butylphenyl) ethynyl]-1, 1′- biphenyl (9) or 1-tert-butyl-4-(phenylethynyl) benzene (11) gave the substituted ...
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