Indium-catalyzed annulation of 3-aryl- and 3-heteroarylindoles with propargyl ethers: synthesis and photoluminescent properties of aryl- and heteroaryl[c]carbazoles
Treatment of 3-aryl- and 3-heteroarylindoles with propargyl ethers under indium catalysis successfully provided aryl- and heteroaryl[c]carbazoles, which were found to be more efficient emitters compared with the corresponding [a]-analogs.
CHEMICALLY MODIFIED OLIGONUCLEOTIDE PRIMERS FOR NUCLEIC ACID AMPLIFICATION
申请人:TriLink BioTechnologies
公开号:EP2032714B1
公开(公告)日:2011-03-16
New preparation of stereodefined α,α-unsaturated ketones by carbomagnesiation of α-allenyl ketones
作者:Nicka Chinkov、Natalia Morlender-Vais、Ilan Marek
DOI:10.1016/s0040-4039(02)01211-x
日期:2002.8
The addition of several alkylmagnesium halides to an α-allenyl ketone leads to the corresponding α,β-unsaturated ketones as single geometrical isomers. A π-chelation between the metal and the unsaturation is proposed to explain the steric outcome of this reaction.