发明授权
US4393218A 2,2,4,5,5-Pentamethyl-3-formyl-.DELTA..sup.3 -pyrroline and the preparation thereof 失效
2,2,4,5,5-五甲基-3-甲酰基-3β-吡咯啉及其制备方法

2,2,4,5,5-Pentamethyl-3-formyl-.DELTA..sup.3 -pyrroline and the
preparation thereof
摘要:
A process for preparing 2,2-dialkyl-4-methyl-5,5-dialkyl-3-formyl-.DELTA..sup.3 -pyrrolines by reacting the corresponding dialkyl substituted di-tert-propargylamines with water at a pH equal to or less than 3.0. Preferably, an inorganic mercury compound is used as a catalyst.
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