QUINOLINE-OXAZOLINE COMPOUNDS AND THEIR USE IN OXIDATION SYNTHESIS
申请人:Sigman Matthew Scott
公开号:US20110054176A1
公开(公告)日:2011-03-03
A quinoline-oxazoline compound having the formula:
where one of X
1
and X
2
is N and the other is C and one of R1, R2 and R3 is Z wherein Z is an oxazoline radical having the formula
such that when X
1
is N R2 is Z and R1 is absent, and when X
2
is N either R1 or R3 is Z and R2 is absent. R1 and R3 through R12 are independently H or a pendant moiety which does not interfere with coordination of either N in the quinoline compound with a coordination center. These compounds can be complexed with a suitable coordination center such as catalytically active palladium and can be highly useful in catalytically oxidizing alkenes with high regioselectivity.
Indazolin-<i>s</i>-ylidene–N-Heterocyclic Carbene Complexes of Rhodium, Palladium, and Gold: Synthesis, Characterization, and Catalytic Hydration of Alkynes
properties of these complexes were modified by the introduction of different substituents at the coordinated NHC ligands. Catalytic properties of the goldcomplex were evaluated in the hydration of alkynes to give the corresponding ketone products. This new type of gold N-heterocyclic carbenecomplex showed a high catalytic activity in the hydration of alkyne at roomtemperature.