In the presence of diphenylantimonymagnesium, various aldehydes react readily with omega-bromoacetophenone to form alpha,beta-unsaturated ketones in good yields.
Synthetic and Mechanistic Study of the Catalytic Enantioselective Preparation of Primary β-Amino Ketones from Enones and a Fluorinated Gabriel Reagent
作者:Shlomit Avidan-Shlomovich、Harisadhan Ghosh、Alex M. Szpilman
DOI:10.1021/cs501744e
日期:2015.1.2
the free primary amines. Mechanistic studies suggest that the reaction occurs through a dual activation mechanism. A pre-equilibrium formation of a 1:1 complex between tetrafluorophthalimide and the catalyst is observed. The rate-determining step is the addition of tetrafluorophthalimide catalyst complex to the catalyst activated enone. These mechanistic studies provide important clues for the further
Catalytic Carbon–Carbon Bond Activation of Saturated and Unsaturated Carbonyl Compounds via Chelate-Assisted Coupling Reaction with Indoles
作者:Nuwan Pannilawithana、Chae S. Yi
DOI:10.1021/acscatal.0c01245
日期:2020.5.15
promote a highly regioselective catalytic C–C bondactivation reaction of saturated and unsaturated carbonylcompounds. The cationic Ru–H complex 1 was found to be an effective catalyst for mediating the coupling reaction of 1,2-disubstituted indoles with α,β-unsaturated aldehydes and ketones, in which the regioselective Cα–Cβ activation of the carbonyl substrates has been achieved in forming the 3-alkylindole
In the presence of diphenylantimonymagnesium, various aldehydes react readily with omega-bromoacetophenone to form alpha,beta-unsaturated ketones in good yields.
Convergent, Regiospecific Synthesis of Quinolines from <i>o</i>-Aminophenylboronates
作者:Joachim Horn、Stephen P. Marsden、Adam Nelson、David House、Gordon G. Weingarten
DOI:10.1021/ol8016726
日期:2008.9.18
A direct convergent two-component synthesis of quinolines from alpha,beta-unsaturated ketones and o-aminophenylboronic acid derivatives is reported. The reaction is regiocomplementary to the traditional Skraup-Doebner-Von Miller synthesis and proceeds under basic rather than strongly acidic conditions. Quinolines substituted in the benzenoid ring can be accessed by using substituted o-aminophenylboronates