High temperature synthesis to bowl-shaped subunits of fullerenes - IV. From 4-[9H-fluorenylidene-(9)]-4H-cyclopenta[def]phenanthrene to fluoreno[1,9,8-abcd]corannulene and difluoreno[1,9,8,7-cdefg;2',1',9',8'-klmno]anthracene
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Add time:09/30/2019 Source:infona.pl
Fluoreno[1,9,8-abcd]corannulene (4) and difluoreno[1,9,8,7-cdefg;2',1',9',8'-klmno]anthracene (8) have been synthesized by multistage thermal and catalytic dehydrocyclization reactions starting from 4-[9H-fluorenylidene-(9)]-4H-cyclopenta[def]phenanthrene and benzo[p]naphtho[1,8,7-ghi]chrysene, respectively.
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