3-ARYL PROPIOLONITRILE COMPOUNDS FOR THIOL LABELING
申请人:UNIVERSITE DE STRASBOURG
公开号:US20160145199A1
公开(公告)日:2016-05-26
The present invention relates to a process for labeling compounds comprising thiol moieties with 3-arylpropiolonitrile compounds, to 3-arylpropiolonitrile compounds substituted with tag moieties and to specific 3-arylpropiolonitrile linkers.
A method for the manufacture of citalopram characterized in (i) reaction of 1-(4-fluorophenyl)-1-(3-dimethylaminopropyl)-5-halophthalane with an activated magnesium to form the Grignard reagent [3-[1-(4-fluorophenyl)-1,3 dihydro-isobenzofuran-1-yl]propyl]dimethylamine 5-magnesium halide followed by (ii) reaction of [3-[1-(4-fluorophenyl)-1,3 dihydro-isobenzofuran-1-yl]propyl)dimethylamine 5-magnesium halide with a compound containing a —CN group bound to a leaving group to form citalopram.
Polarizing the Nazarov Cyclization: The Impact of Dienone Substitution Pattern on Reactivity and Selectivity
作者:Wei He、Ildiko R. Herrick、Tulay A. Atesin、Patrick A. Caruana、Colleen A. Kellenberger、Alison J. Frontier
DOI:10.1021/ja077162g
日期:2008.1.1
The impact of dienone substitution on the Nazarovcyclization has been examined in detail. Substrates bearing different substituents at each of four positions on the dienone backbone were systematically probed in order to identify trends leading to higher reactivity and better selectivity. Desymmetrization of the pentadienyl cation and oxyallyl cation intermediates through placement of polarizing groups