Benzofuran derivatives

Details Benzofuran derivatives Benzofuran derivatives

1974-02-06

1976-08-10

Rush, Raymond V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260240R, 260240D, 260240CA, 2602406, 25230122, 25230128, C07D26356

Patent

active

039741729

ABSTRACT:
Benzofuran compounds of the formula ##SPC1##
Wherein E is a bivalent bridging member of the formula ##SPC2##
S is hydrogen, halogen, lower alkyl, carboxy, sulfo, cyano, lower carboalkoxy, carbonamido, lower mono- or dialkyl carbonamido, sulfonic acid lower alkyl ester, sulfonamido, lower mono- or dialkyl sulfonamido or phenyl; P, Q, T and U are hydrogen or halogen, lower alkyl, lower alkoxy, phenyl, carboxy, cyano, lower carboalkoxy, lower carbo-alkoxy substituted by a member selected from the group consisting of lower alkoxy, lower dialkylamino and lower trialkyl ammonium, carbonamido, lower mono- or di-alkyl carbonamido, sulfo, sulfonic acid lower alkyl ester, sulfonamido or lower mono- or dialkyl sulfonamido or P and Q together or T and U together are lower alkylene or an annellated phenyl ring, and n is 1 to 3. These compounds can be synthetized by a condensation reaction of the corresponding carboxylic acid derivative with an ortho-aminophenol or by HORNER or similar syntheses forming said bridging member. The products are optical brighteners.

REFERENCES:
patent: 3772323 (1973-11-01), Schlapfer et al.

Affiliated with

Also associated with

Rating

Benzofuran derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Benzofuran derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Benzofuran derivatives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1742344