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We present Document Explorer, a data mining system searching for patterns in document collections. These patterns provide knowledge on the application domain that is represented by the collection. A pattern can also be seen as a query that retrieves a set of documents. Thus the data mining tools can be used to identify interesting queries which can be used to browse the collection. The main pattern...
Enhydroxylaminones—2,2-dimethyl-2,4-dihydro-3H-pyrrol-3-on-1-oxides were shown to give various chlorinated products in the Vilsmeier–Haack reaction. The general sequence of the reaction steps is determined and the extent of the reaction was shown to be strongly dependent on the substrate structure.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.