53700-95-1Relevant academic research and scientific papers
Highly regio-and enantioselective synthesis of polysubstituted 2 H -pyrroles via pd-catalyzed intermolecular asymmetric allylic dearomatization of pyrroles
Zhuo, Chun-Xiang,Zhou, Yong,You, Shu-Li
, p. 6590 - 6593 (2014/05/20)
A highly efficient synthesis of chiral polysubstituted 2H-pyrrole derivatives via a Pd-catalyzed intermolecular asymmetric allylic dearomatization reaction of pyrroles is presented. With the commercially available palladium precursor and chiral ligand, the polysubstituted 2H-pyrrole products containing a chiral quaternary carbon center were obtained with up to 97% ee and >95/5 regioselectivity.
1,7-disubstituted boron dipyrromethene (BODIPY) dyes: Synthesis and spectroscopic properties
Leen, Volker,Miscoria, Dominique,Yin, Shouchun,Filarowski, Aleksander,Molisho Ngongo, Joseph,Van Der Auweraer, Mark,Boens, Noel,Dehaen, Wim
experimental part, p. 8168 - 8176 (2011/12/04)
1,7-Dihalogenated boron dipyrromethene dyes were successfully synthesized and substituted, thus providing an entry to the final, elusive reactivity pattern. The spectroscopic properties of 1,7-disubstituted BODIPY dyes were studied and are discussed as a
SYNTHESE DE PYRROLES ET D'OXAZOLES PAR PYROLYSE DE N-(HYDROXY-2' ETHYL) AMINO-3 PROPENOATE
Pale-Grosdemange, Catherine,Chuche, Josselin
, p. 3397 - 3414 (2007/10/02)
The gas phas pyrolysis of various N-(2'-hydroxyethyl)-3-amino propenoates 1-6 and N-(2'-hydroxy-2'-phenyl ethyl)-3-amino propanoate 7-9 at 390 deg C-420 deg C leads respectively to formylpyrroles 11-16 and benzoylpyrroles 17-19 and, in some cases, to substituted oxazoles 36-39.The results are best explained by the intermediate formation of a dicarbonyl derivative followed either by an intramolecular thermal crotonisation or a six ? electrocyclization of an azomethine ylide.
LITHIATION OF THE DIMER OF 3-BROMO-6-DIMETHYLAMINO-1-AZAFULVENE. EFFICACIOUS SYNTHESIS OF 4-MONO- AND 4,5-DISUBSTITUTED PYRROLE-2-CARBOXALDEHYDES.
Muchowski, Joseph M.,Hess, Petr
, p. 3215 - 3218 (2007/10/02)
The dimer 1a of 3-bromo-6-dimethylamino-1-azafulvene, is shown to function as a formal equivalent of 4-lithio- or 4,5-dilithiopyrrole-2-carboxaldehyde and consequently it is a progenitor, par excellence, of 4-mono- and 4,5-disubstituted pyrrole-2-carboxaldehydes.
