| 摘要 |
Preparation of benzene sulfonate lithium complex salts comprises reacting 3,-,4-,5-,6-substituted phenol with chlorosulfonic acid in a solvent, isolating an intermediate product and reacting with lithium tetramethanol borate. Preparation of compounds of formula (I) comprises reacting 3,-,4-,5-,6-substituted phenol with chlorosulfonic acid in a solvent, filtering and fractionally distilling this intermediate product of formula (II), further reacting with lithium tetramethanol borate in a solvent and isolating the product. R<1> and R<2> = optionally bonded by a single or double bond and are phenyl, naphthyl, anthracenyl or phenanthrenyl, pyridyl, pyrazyl or pyrimidyl, or hydroxybenzocarboxyl, hydroxynapthalene carboxyl, hydroxybenzylsulfonyl or hydroxynaphthalenesulfonyl, all optionally substituted by 1-6C alkyl or alkoxy or F, Cl or Br; R<1> and R<2> = H, 1-6C alkyl or tri(1-6C)alkylsilyl; and R<3> - R<6> = optionally bonded by a single or double bond and are 1-6C alkyl or alkoxy, F, Cl or Br, or phenyl, naphthyl, anthracenyl or phenanthrenyl, pyridyl, pyrazyl or pyrimidyl, all optionally substituted by 1-6C alkyl or alkoxy or F, Cl or Br. Independent claims are included for the preparation of the intermediate product (II) as above and the use of (II) in the preparation of (I). |
