Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Methyl 2-perfluoroalkyl-6-methoxybenzoates(4) were synthesized from the adduct products of phosphorane 1 with methyl 2-perfluoroalkynoates(2) via intramolecular Wittig reaction. ... The studies of the chemistry and application of phosphonium and arsonium ylides, Part 5. Part ...