Tandem Ring-Opening Decarboxylation of Cyclopropane Hemimalonates with Sodium Azide: A Short Route to γ-Aminobutyric Acid Esters
摘要:
Cyclopropane hemimalonates, when treated with sodium azide, undergo a tandem ring-opening decarboxylation to produce gamma-azidobutyric acids in good yields. These adducts were hydrogenated to form gamma-aminobutyric acid (GABA) methyl esters.
Nucleophilic Opening of Donor–Acceptor Cyclopropanes with Indoles via Hydrogen Bond Activation with 1,1,1,3,3,3-Hexafluoroisopropanol
作者:Lauren C. Irwin、Carling R. Renwick、Michael A. Kerr
DOI:10.1021/acs.joc.8b00894
日期:2018.6.1
The treatment of donor–acceptor cyclopropanes with the a strong hydrogenbond donor, HFIP, activated the cyclopropanes (via presumed hydrogenbonding) toward homo-Michael additions with indoles as the nucleophiles. This reaction proceeded without the need for high pressure or catalysis.