Process for carboxylating organic substrates with carbon dioxide in
申请人:Montedison S.p.A.
公开号:US03976677A1
公开(公告)日:1976-08-24
Carboxylable substrates i.e., ketones, esters, nitroparaffins and nitriles, containing activated hydrogen atoms are carboxylated by reaction with alkaline phenates and CO.sub.2 in at least one hydrocarbon solvent selected from aliphatic, alicyclic, aromatic and alkyl-aromatic hydrocarbon solvents.
The gas-phase Smiles rearrangement the effect of ring substitution. An18O labelling study
作者:Peter C. H. Eichinger、John H. Bowie
DOI:10.1002/oms.1210271007
日期:1992.10
AbstractThe gas‐phase Smiles reaction of RC6H4O(CH2)nO−(n = 2 or 3) is an ipso rearrangement which is strongly influenced by the nature of the substituent R. Electron‐withdrawing groups enhance the rearrangement. When the substituent R is halogen or MeO, and occupies the ortho position, ortho cyclization competes with the Smiles rearrangement.
BOTTACCIO G.; MARCHI M., GAZZ. CHIM. ITAL., 1977, 107, NO 9-10, 499-500