MAKOSZA, M.;LUDWICZAK, S., SYNTHESIS, BRD, 1986, N 1, 50-52
作者:MAKOSZA, M.、LUDWICZAK, S.
DOI:——
日期:——
Vicarious Nucleophilic Substitution of Hydrogen in Nitrobenzoic Acids
作者:M. Makosza、S. Ludwiczak
DOI:10.1055/s-1986-33420
日期:——
The vicarious nucleophilic substitution of hydrogen in three isomeric nitrobenzoic acids 2-4 was studied. The negatively charged carboxylate anion substituent does not disturb the reaction course which proceeds with good to moderate yields to give products 6 and 7.
Extending the Scope of the New Variant of the Castagnoli–Cushman Cyclocondensation onto o-Methyl Benzoic Acids Bearing Various Electron-Withdrawing Groups in the α-Position
involvement of homophthalic acid monoesters in the Castagnoli–Cushman reaction-type cyclocondensation with imines, we tested a number of other o-methyl benzoic acids bearing various electron-withdrawing groups in the α-position. The majority of these substrates delivered the expected tetrahydroisoquinolone adducts on activation with CDI or acetic anhydride. Homophthalic acid mononitriles displayed the