Process for the preparation of sulphonated distyryl-biphenyl com

Details Process for the preparation of sulphonated distyryl-biphenyl com Process for the preparation of sulphonated distyryl-biphenyl com

1999-05-10

2000-08-01

Marschel, Ardin H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

8552, 427158, C07C24700

Patent

active

060969199

ABSTRACT:
A process for the preparation of sulphonated distyryl-biphenyl compounds of formula: ##STR1## in which R.sub.1 represents hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy or halogen, R.sub.1A represents hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy or halogen and M represents hydrogen, an alkaline- or alkaline earth-metal, or ammonium, characterised by reacting a compound of formula: ##STR2## in which R.sub.2 represents C.sub.1 -C.sub.5 alkyl, with a compound of formula: ##STR3## whereby R.sub.3 represents phenyl, optionally substituted by C.sub.1 -C.sub.4 alkoxy, halogen or SO.sub.3 M, or C.sub.1 -C.sub.12 alkyl, R.sub.4 represents C.sub.2 -C.sub.6 alkylene, and M, R.sub.1 and R.sub.1A are defined as above, in an alcoholic or dipolar aprotic solvent and in the presence of a strong base. Novel compounds of formulae (3) and (4) and a process for their preparation.

REFERENCES:
patent: 3907904 (1975-09-01), Luethi
patent: 3984399 (1976-10-01), Weber et al.
patent: 4013642 (1977-03-01), Meyer
patent: 4118560 (1978-10-01), Weber
patent: 4231957 (1980-11-01), Marky
patent: 5332861 (1994-07-01), Guglielmetti
patent: 5622749 (1997-04-01), Rohringer et al.
patent: 5830241 (1998-11-01), Rohringer et al.
Advances in Heterocyclic Chemistry, vol. 23, pp. 171-185, 1978.
King et al., Canadian Journal of Chemistry, vol. 49, (1971), pp. 936-942.

Affiliated with

Also associated with

Rating

Process for the preparation of sulphonated distyryl-biphenyl com does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of sulphonated distyryl-biphenyl com, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of sulphonated distyryl-biphenyl com will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-665490