An electroluminescent compound and an electroluminescent device comprising the same
The present invention relates to an organic light emitting compound represented by chemical formula 1, and an organic electroluminescent device comprising the same. The organic light emitting compound according to the present invention increases PL quantu
-
Paragraph 0291-0295
(2016/10/08)
Oligomerization of ethylene using new tridentate iron catalysts bearing α-diimine ligands with pendant S and P donors
Stoichiometric Schiff base condensations of sterically bulky primary amines with acenaphthenequinone yield isolable monoimines. In the presence of iron(II) chloride, the remaining ketone reacts with a second primary amine bearing a pendant donor atom to g
Small, Brooke L.,Rios, Ray,Fernandez, Eric R.,Gerlach, Deidra L.,Halfen, Jason A.,Carney, Michael J.
experimental part
p. 6723 - 6731
(2011/03/17)
SUBSTITUTED NITROBENZENE DERIVATIVES AS MEDICINES AND OTHER USEFUL USES THEREOF
The present invention relates to a use of substituted nitrobenzene derivatives of general Formula I in medicine and health food, the pharmaceutical compositions comprising substituted nitrobenzene derivatives of general Formula I and the methods thereof for the prophylaxis and treatment of diseases.
-
(2008/06/13)
Metacyclophanes and Related Compounds. Part 16. Preparation of 8-Fluoro-t-butylmetacyclophanes and their Treatment with Aluminium Chloride-Nitromethane in Benzene
The preparation of 8-fluoro-t-butylmetacyclophanes (5) are described.Dithiametacyclophane (3) and metacyclophane bis(sulphones) (4) were obtained as a mixture of transoid and cisoid conformers, but metacyclophanes (5) were exclusively obtained as the transoid conformer after pyrolysis of the sulphones (4).AlCl3-MeNO2-Catalyzed trans-t-butylation of 8-fluoro-16-methyl-5,13-di-t-butylmetacyclophane (5a) in benzene under a variety of conditions faild to give 8-fluoro-16-methylmetacyclophane (32) but, instead, the tetrahydropyrenes (33) and/or (34) were obtained depending upon the conditions used.Internally substituted metacyclophanes were isomerized to the strainless metacyclophanes and these were then oxidized to the tetrahydropyrene (33).