The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.
Pyrimidine substituted-2,2-dimethylcyclopropane carboxylates useful for
申请人:Imperial Chemical Industries PLC
公开号:US04661488A1
公开(公告)日:1987-04-28
A compound of formula: ##STR1## wherein R.sup.2 represents an .alpha.-branched alkyl group containing from 3 to 6 carbon atoms, and R represents either (a) hydroxy, halo or alkoxy of up to six carbon atoms, or (b) the group --OR.sup.1 where R.sup.1 is the residue of an alcohol of formula R.sup.1 OH which forms an insecticidal ester with chrysanthemic acid, permethrin acid or cyhalothrin acid. The compounds have insecticidal and acaricidal properties.
Synthesis of 1,3-dihydrofuro[3,4-]pyridines and 5,7-dihydrofuro[3,4-]pyridines by intramolecular Diels-Alder reactions of pyrimidines. Investigation of the effect of steric interactions on the reaction rate
作者:A.E. Frissen、A.T.M. Marcelis、D.G. Buurman、C.A.M. Pollmann、H.C. van der Plas
DOI:10.1016/s0040-4020(01)89505-3
日期:1989.1
5-propynyloxymethylpyrimidines were synthesized and their intramolecularDiels-Alderreaction was studied. The products of the reaction were 5,7-dihydrofuro[3,4-]pyridines and 1,3-dihydrofuro[3,4-]pyridines, respectively. Introduction of one or two alkyl (aryl) groups at the α or γ position of the side-chain of the 5-propynyloxymethylpyrimidines results in an increased reaction rate. This phenomenon is discussed in terms
The present invention relates to metal complexes and to elec
tronic devices, in particular organic electroluminescent devices, com-pris
ing these metal complexes. M(L)n(L′)m (formula 1), where the compound of the gene
ral formula (1) contains a moiety M(L)n of the formula (2).