Process for the preparation of peri-dichalcogeno polycyclic arom

Details Process for the preparation of peri-dichalcogeno polycyclic arom Process for the preparation of peri-dichalcogeno polycyclic arom

1992-03-11

1994-02-08

Raymond, Richard L.

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

Organic compounds

423179, 423508, 423511, 549 4, 549 31, C07D33350, C07D33378, C07D51706, C07D51700

Patent

active

052849422

ABSTRACT:
A process for the preparation of peri-dichalcogeno polycyclic aromatic compounds by preparing in a first step, in an amidic solvent, an alkali metal sulfide, selenide or telluride which, in a second step, is reacted with a peri-halogeno aromatic compound, which process comprises reacting in said first step an alkali metal base with elemental sulfur, selenium or tellurium at elevated temperature.

REFERENCES:
patent: 5009812 (1991-04-01), Finter et al.
T. Otsubo et al. Chemistry Letters pp. 315-316 (1987).
Palaniswamy et al. Chem. Abstract vol. 92(4):25135k (1980).
Syper et al. Synthesis, No. 5 pp. 439-442 (1984).
K. Balodis et al., Zhurnal Organicheskoi Khimii, 15 (2), pp. 391-393 (1979).
D. Sandman et al. Organometallics, 1, pp. 739-742 (1982).
B. Kruptsou et al., Chem. Abstract, 77(13):87350a (1972).

Affiliated with

Also associated with

Rating

Process for the preparation of peri-dichalcogeno polycyclic arom 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 peri-dichalcogeno polycyclic arom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of peri-dichalcogeno polycyclic arom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-698777