toluene + KMnO4- Write the balanced equation for the reaction of acetaldehyde with Tollen's reagent. What type of reaction is this? Which reaction would you expect to be faster, addition of HBr to cyclohexene or to 1-methylcyclohexene? Explain your answer. Name the given alken...
应用一:保护羰基 应用二:还原 缩硫酮 6、与磷叶立德的反应(维蒂希反应, wittig reaction) Wittig reaction —— the reaction of an aldehyde or a ketone with a phosphonium ylide to form an alkene. 反应机理: Wittig反应条件温和,产率高,生成的双键位置明确,不重排。 共轭醛酮不发生1,4-加成,分子中COOR...