There are disclosed sulfonic acid precursor compositions, as are methods of using these compositions in, for example, photolithography. Other embodiments are also disclosed.
Zinc bromide promoted allylation of aluminum acetals derived from perfluoro carboxylic acid esters and diisobutylaluminum hydride. New convenient access to α-perfluoroalkylated homoallyl alcohols
aluminum acetals, generated in situ by the reduction between perfluoro carboxylic acid esters and diisobutylaluminum hydride, with a variety of allylstannanes efficiently proceeds in the presence of zincbromide at 40 °C to afford the corresponding α-perfluoroalkyl-substituted homoallyl alcohols in good yields.