101833-09-4Relevant articles and documents
Combined dealkoxycarbonylation and lactonisation of unsaturated malonates in ionic liquids
Oswald, Magalie F.,Parsons, Andrew F.,Yang, Wei,Bowden, Martin
, p. 8087 - 8089 (2005)
Heating unsaturated malonates with LiCl and water in [bmim][Br] or [bmim][BF4]/[bmim][Br] produces unsaturated esters or lactones, respectively.
Triflic acid mediated dealkylative lactonisation via NMR-observable alkyloxonium intermediates
Munoz, M. Paz,Lloyd-Jones, Guy C.
experimental part, p. 516 - 524 (2009/07/19)
Trifluoromethanesulfonic acid (TfOH) efficiently induces the dealkylative cyclisation of pent-4-enoates to generate γ-lac-tones with high selectivity. For primary alkyl esters bearing an additional alkene, only monolactonisation occurs, even in the presen