924305-06-6Relevant articles and documents
4-halogenated isoindoline hydrochloride preparation method
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, (2019/04/06)
The invention provides a 4-halogenated isoindoline hydrochloride preparation method. 2,3-dihalomethyl-3-halogenobenzene serving as a raw material is subjected to cyclization reaction to obtain a compound in a formula I, and a reaction formula is as shown
Preparation of dihydropyrrol derivatives as intermediates
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Page/Page column 8, (2009/06/27)
The invention is concerned with a new scalable process for the preparation of compounds of formula I comprising a new process for the preparation of the key intermediate, a dihydropyrrole derivative formula II or a salt thereof.