SYNTHESIS OF FLUORESCENT DYE 1,4-BIS-(O-CYAN-STYRYL) BENZENE

SYNTHESIS OF FLUORESCENT DYE 1,4-BIS-(O-CYAN-STYRYL) BENZENE

  • CN 1,009,551 B
  • Filed: 06/12/1985
  • Issued: 09/12/1990
  • Est. Priority Date: 06/12/1985
  • Status: Active Grant
First Claim
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1. , a kind of fluorescence dye 1, synthesizing of two (the adjacent cyano-styrene base) benzene of 4-is characterized in that:

  • (1) o-cyano toluene under illumination with chlorine reaction, generate o-cyanobenzyl chloride and hydrogenchloride.(2) reaction of o-cyanobenzyl chloride and triethyl-phosphite generates o-cyanobenzyl diethyl phosphoric acid and monochloroethane.(3) o-cyanobenzyl diethyl phosphoric acid and terephthalaldehyde are dissolved in the dimethyl formamide, generate 1 with the sodium methylate reaction, two (adjacent cyano-styrene base) benzene and p diethylaminobenzoic acid ester sodium salt and the methyl alcohol of 4-.

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