Method for conducting organic reactions using guanidinium salt a

Details Method for conducting organic reactions using guanidinium salt a Method for conducting organic reactions using guanidinium salt a

1991-03-13

1992-07-21

Bond, Robert T.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

546231, 548455, 548473, 548566, 558411, 558423, 504241, 568 28, 568 29, 568 33, 568 41, 568 42, 568 44, 568 38, 568585, 568635, C07D20948, C07C 2958, C07C32128, C07C27902

Patent

active

051324237

ABSTRACT:
Reactions between a solid polar and a non-polar compound, especially nucleophilic aromatic substitution reactions between an alkali metal salt of a hydroxyaromatic compound or thio analog thereof and an activated halo- or nitro-substituted aromatic compound, are conducted in a non-polar organic solvent such as toluene or xylene, in the presence of a hexaalkylguanidinium or .alpha.,.omega.-bis(pentaalkylguanidinium)alkane salt, or a corresponding heterocyclic salt, as a phase transfer catalyst. The method is particularly useful for the preparation of bisimides from bisphenol A or 4,4'-biphenol salts and 4-nitro- or 4-halophthalimides.

REFERENCES:
patent: 4273712 (1981-06-01), Williams
patent: 4460778 (1984-07-01), Brunelle et al.
patent: 4513141 (1985-04-01), Brunelle et al.
patent: 4554357 (1985-11-01), Verbicky et al.
patent: 4578470 (1986-03-01), Webb
patent: 4681949 (1987-07-01), Brunelle
Denarie, et al. Tetrahedron Letters vol. 28(47) 5823-5826, 1987.
Jones Aldrichemica Acta vol. 9(3) 1976 pp. 35-45.
Wlostoski, et al. Chemical Abstracts vol. 113, 1990, Abstract 58127q.

Affiliated with

Also associated with

Rating

Method for conducting organic reactions using guanidinium salt a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for conducting organic reactions using guanidinium salt a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for conducting organic reactions using guanidinium salt a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-844485