A compound comprising a first ligand L
A
of Formula I,
is provided. In Formula I, moiety A is a fused polycyclic ring system; moiety B is a monocyclic ring or a fused polycyclic system; ring C is a 5-membered ring; ring D is a 6-membered ring; Y is N, B, or P; each of Z
1
to Z
4
is C or N; X
1
is CR
1
or N; each of K
1
and K
2
is a direct bond or a linker; each R
1
, R
2
, R
α
, R
β
, R
A
, and R
B
is hydrogen or a General Substituent defined herein; and L
A
is joined to a metal M by the dashed lines. Formulations, OLEDs, and consumer products containing the compound are also provided.
Cyclohexane and cyclohexene derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly man.
Cyclohexane and cyclohexene derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly man.
promising synthetic method; however, catalytic synthesis of 3,4-nonsubstituted isoquinolines by formal acetylene annulation has been scarce to date. Herein, we introduce vinyl selenone as an effective acetylene surrogate for the Rh-catalyzed annulative coupling under mild conditions. The Se fragment can be recovered as diselenide and recycled. The product can readily be converted to 1-aminoisoquinolines
Flexible palladium-catalysed amidation reactions for the synthesis of complex aryl amides
作者:Christopher Barfoot、Gerald Brooks、Pamela Brown、Steven Dabbs、David T. Davies、Ilaria Giordano、Alan Hennessy、Graham Jones、Roger Markwell、Timothy Miles、Neil Pearson、Christian A. Smethurst
DOI:10.1016/j.tetlet.2010.03.051
日期:2010.5
This Letter describes the synthesis of complex aryl amides using palladium-catalysed amidation reactions. Use of these conditions allowed for the coupling of a variety of aryl halides and triflates with a host of primary amides in high yields. (C) 2010 Elsevier Ltd. All rights reserved.