ASYMMETRIC ALLYLATION OF PROCHIRAL ALDEHYDES WITH A NEW ENANTIOSELECTIVE ALLYLATING AGENT PREPARED FROM STANNOUS TRIFLATE, A CHIRAL DIAMINE, AND ALLYLDIALKYLALUMINUM
A new enantioselective allylating agent, prepared by treatment of a mixture of stannous trifluoromethanesulfonate and a chiral diamine with allyldialkylaluminum, reacts with prochiral aldehydes to give secondaryhomoallylalcohols in good optical yield.
Asymmetric trialkylaluminium addition to aldehydes catalyzed by titanium complexes of N-sulfonylated amino alcohols with two stereogenic centers
作者:Jing-Song You、Sheng-Hsiang Hsieh、Han-Mou Gau
DOI:10.1039/b103618c
日期:——
The asymmetric methylation, ethylation and allylation of aldehydes using trialkylaluminium reagents catalyzed by titanium(IV) complexes of N-sulfonylated aminoalcohols gave excellent enantioselectivities of up to 99% ee.
A Pd‐Catalyzed Annulation Strategy to Linearly Fused Functionalized N‐Heterocycles
作者:Larry Hoteite、Benjamin D. W. Allen、Ms. Ergaiya A. Elhajj、Anthony J. H. M. Meijer、Joseph P. A. Harrity
DOI:10.1002/chem.202400116
日期:2024.4.11
annulation strategy to linearly fused polycyclic piperidines from readily available substrates. These products can be chemoselectively functionalized to generate analogs that represent commonsubstructures in bioactive compounds.