Reaxys is a workflow tool based on the content from CrossFire Beilstein, Gmelin and Patent Chemistry Database. Reaxys integrates reaction and substance data search with synthesis planning. It is an intuitive web-application with powerful and flexible search capabilities, including searching by reaction, substance, and/or numeric property data. Substance searching includes (sub-)structure, generic and R-group searching, molecular formula, name and many more choices. Results – reactions and measured substance data – are presented in easy-to-read tabular views.
You can access Reaxys here: https://www.reaxys.com