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Reaxys (English): Reactions

Information about Reaxys, a web-based chemical database

Search for reactions


You can use this to search for reactions. You enter the reaction in the structure editor (to change this go to the Settings tab). You can enter a complete reaction or just a single compound. The results can be filtered in various ways.

Search for reactions

Clicking on the Reactions breadcrumb on the home page will take you to the screen shown below.

1. Double-click to go to the structure editor. Draw the reaction.

2. Select how to search the structure. Substructure search means that the database also searches for compounds with more substituents.

3. Check the options to make your search query more specific or to broaden your search.

4. Where necessary, you can indicate the role of the structure in the reaction.

5. Here you can enter more requirements that the results must meet. You can search more fields using Add/remove fields.

6. Search!

    1. These breadcrumbs make it easy to navigate to earlier sets of results. Each filter creates a new breadcrumb.

    2. You can filter your results on reaction type, number of steps, yield, and so on.

    3. Check results to exclude them, for example (Exclude).

    4. You can set how you see the results using these tabs.

    5. A summary of the results. Each result shows the reaction, a brief description of the experiment and the reference in which it was found. Read how to save your results on the Tips & Tricks tab.

If you zoom in on the results you can see more options beneath each compound.

The four icons, from left to right:
Availability
Check the commercial availability of this compound using ACD, CambridgeSoft or eMolecules.
Display further options and data
For example CAS number or molecular weight (MW), but you can also copy the structure using this button.
Enlarge structure and rotate in 3D
Note: the structure will remain flat.
Show corresponding substances in...
Shows the information in PubChem or eMolecules.

Synthesize
Use the Synthesize button to create a synthesis plan in Reaxys. This is explained in the Synthesis plan tab.

Find similar reactions
Find similar reactions, depending on the chosen scope (from Tight to Widest). The numbers represent the number of hits for the selected scope. Hover over the question mark on the website to see the scope conditions.