| 摘要 |
<p>Preparation of oxobenzofuranone compound (I) comprises reacting a benzene-1,3-diol compound (III) with glyoxalic acid and condensing the obtained product with hydrochloric acid or by splitting of water. Preparation of oxobenzofuranone compound of formula (I) comprises reacting a benzene-1,3-diol compound of formula (III) with glyoxalic acid and condensing the obtained product with hydrochloric acid or by splitting of water. R 1H, OH or 1-8C alkyl (preferably H, OH or tert.-butyl); R 2H, 1-4C alkyl (both preferred) or aryl; and R 3R 2 (preferably H). Independent claims are included for: (1) the preparation of a macrocyclic compound of formula (II) comprising oxidizing (I) (where R 1 is OH and R 3 is H) by splitting of hydrogen; (2) the preparation of a phenyl-bifuranylidene-2,2'-dione compound of formula (VII) comprising reacting (IV) with a hydroxylactone compound of formula (VI); (3) the preparation of a phenyl-bifuranylidene-2,2'-dione compound of formula (VIII) comprising reacting a furan-2-one compound of formula (V) with (VI); (4) the preparation of (IV) by reaction of (III) with glyoxalic acid; (5) an organic or inorganic material containing (I), (II), (VII) and/or (VIII) as dye or fluorescent agent; (6) a thermoplastic processible polymer or duroplastic processible polycondensate, inks, varnish and toner; (7) a oxobenzofuranone compound (I), which is obtained from the process; (8) a pyrene-2,7-dione compound (II), which is obtained from the process; (9) a phenyl-bifuranylidene-2,2'-dione compound (VII), which is obtained from the process; (10) a phenyl-bifuranylidene-2,2'-dione compound (VIII), which is obtained from the process; and (11) a dye polymer, which is produced from (IV) or (V) by condensation and/or removal of 2 more units, preferably 2-5 units of water. Ra, Rb : H, 1-4C alkyl (preferably methyl or tert.-butyl) or aryl. [Image] [Image] [Image] [Image].</p> |
