195600-92-1Relevant academic research and scientific papers
The high pressure reaction of cyclopropanes with indoles catalyzed by ytterbium triflate
Harrington, Paul,Kerr, Michael A.
, p. 5949 - 5952 (1997)
A variety of 1,1-cyclopropane dicarboxylic acid esters were reacted with a selection of indoles under hyperbarric conditions. In the presence of Yb(OTf)33H2O, smooth ring opening resulted in the formation of 4-indolyl dicarboxylic acid esters. Hydrolysis and decarboxylation resulted in the formation of the mono-acids. Nucleophilic attack occurred specifically at the more hindered position of the substituted cyclopropanes.
