317-17-9Relevant academic research and scientific papers
Synthesis of 1,3-Azaphospholes with Pyrrolo[1,2- a]quinoline Skeleton and Their Optical Applications
Wu, Di,Chen, Lingfeng,Ma, Shuangliang,Luo, Huiying,Cao, Jing,Chen, Runfeng,Duan, Zheng,Mathey, Francois
, p. 4103 - 4106 (2018/07/15)
A facile synthesis of 1,3-azaphospholes with a pyrrolo[1,2-a]quinoline skeleton has been described. These new annulated 1,3-azaphospholes exhibit good photoelectric performance and can be used as the emitting dopant in organic light-emitting diodes (OLEDs) and dye for bioimaging.
Tandem Pd-catalyzed double C-C bond formation: Effect of water
Chai, David I.,Lautens, Mark
supporting information; experimental part, p. 3054 - 3061 (2009/08/07)
A highly efficient water-accelerated palladium-catalyzed reaction of gem-dibromoolefins with a boronic acid via a tandem Suzuki-Miyaura coupling and direct arylation is reported. A wide range of aryl, alkenyl, and alkyl boronic acids, as well as a variety
Palladium-catalyzed annulation of aryl heterocycles with strained alkenes
Hulcoop, David G.,Lautens, Mark
, p. 1761 - 1764 (2008/02/02)
An annulation reaction proceeding by the intermolecular addition of an arylpalladium(II) halide across a strained alkene, followed by an intramolecular C-H functionalization of a pendant heterocycle is described. A variety of polycyclic heterocycles have
A new method for the synthesis of pyrrolo[1,2-a]quinolines based on boron trifluoride-mediated cyclization of 1-(2-oxiranylphenyl)pyrroles
Kobayashi, Kazuhiro,Takanohashi, Atsushi,Himei, Yasutoshi,Sano, Takehiko,Fukamachi, Shuhei,Morikawa, Osamu,Konishi, Hisatoshi
, p. 2717 - 2720 (2008/09/19)
A simple synthesis of pyrrolo|1,2-a|lquinolines carrying no substituent at all of the 1- to 5-positions based on boron trifluoride-mediated cyclization of 1-(2-oxiranylphenyl)pyrroles, which can be easily prepared from 2-(pyrrol-l- yl)benzatdeh
Synthesis of phenanthrenes and polycyclic heteroarenes by transition-metal catalyzed cycloisomerization reactions
Mamane, Victor,Hannen, Peter,Fuerstner, Alois
, p. 4556 - 4575 (2007/10/03)
Readily available biphenyl derivatives containing an alkyne unit at one of their ortho-positions are converted into substituted phenanthrenes on exposure to catalytic amounts of either PtCl2, AuCl, AuCl3, GaCl3 or InCl3 in toluene. This 6-endo-dig cyclization likely proceeds through initial π-complexation of the alkyne unit followed by interception of the resulting η2-metal species by the adjacent arene ring. The reaction is inherently modular, allowing for substantial structural variations and for the incorporation of substituents at any site of the phenanthrene product. Moreover, it is readily extended to the heterocyclic series as exemplified by the preparation of benzoindoles, benzocarbazoles, naphthothiophenes, as well as bridgehead nitrogen heterocycles such as pyrrolo[1,2-a]quinolines. Depending on the chosen catalyst, biaryls bearing halo-alkyne units can either be converted into the corresponding 10-halo-phenanthrenes or into the isomeric 9-halo-phenanthrenes; in the latter case, the concomitant 1,2-halide shift is best explained by assuming a metal vinylidene species as the reactive intermediate. The scope of this novel method for the preparation of polycyclic arenes is illustrated by the total synthesis of a series of polyoxygenated phenanthrenes that are close relatives of the anticancer agent combretastatin A-4, as well as by the total synthesis of the aporphine alkaloid O-methyl-dehydroisopiline and its naturally occurring symmetrical dimer.
Flexible synthesis of phenanthrenes by a PtCl2-catalyzed cycloisomerization reaction
Fuerstner, Alois,Mamane, Victor
, p. 6264 - 6267 (2007/10/03)
Readily available biphenyl derivatives containing an alkyne unit at one of their ortho positions are converted into substituted phenanthrenes upon exposure to catalytic amounts of either PtCl2, AuCl3, GaCl3, or InCl3 in toluene. This 6-endo-dig cyclization likely proceeds through initial π-coordination of the alkyne unit followed by interception of the resulting η2-metal complex by the adjacent arene ring. The reaction is inherently modular, allowing for substantial structural variations and for the incorporation of substituents at any site of the phenanthrene product except C-9. Moreover, the reaction is readily applied to the heterocyclic series as exemplified by the preparation of benzoindoles, naphthothiophenes as well as bridgehead nitrogen hetero- cycles.
Some Cyclisation Reactions of 2,2'-Disubstituted-N-arylpyrroles
Cheeseman, G. W. H.,Eccleshall, S. A.,Thornton, T.
, p. 809 - 811 (2007/10/02)
Tricyclic products were derived from N-(2-methoxycarbonylphenyl)pyrrole-2-carboxaldehyde (2) and N-(2-chloromethylphenyl)pyrrole-2-carboxaldehyde (8).
