SEARCH Articles Figures Tables Azlactone Azlactone synthesis Azlactonization Erlenmeye-Plochl azlactone synthesis Erlenmeye-Plochl azlactone synthesis Erlenmeyer Erlenmeyer azlactone Erlenmeyer azlactone synthesi Erlenmeyer azlactone synthesis Erlenmeyer synthesis Erlenmeyer-Plochl