Regiochemistry of the Reaction of 2-Acylcyclohexanones with Trimethyl Orthoformate: A Convenient One-Pot Method to Obtain 7,7-Dimethoxy Alkanoate Methyl Esters - Martins, Marcos A P; Bastos, Giovani P; Sinhorin, Adilson P; Flores, Alex F C; Bonacorso, Helio G; Zanatta, Nilo (Synlett, 1999)