A simple one-pot synthesis of spiranones from cycloketones and dienes promoted by an ammonium salt generated in situ from diamine and alkoxymethyl chloride through a tandem alpha-methylenation/Diels-Alder reaction is described.
                                    描述了由二胺和烷氧基
甲基氯通过串联α-亚甲基化/ Diels-Alder反应原位产生的
铵盐促进的由环酮和二烯简单合成的
螺环酮和二烯。