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Improve your knowledge of Named Reactions with ReactionFlash®

ReactionFlash® gives access to over 1,250 Named Reactions, their mechanisms and examples published in peer-reviewed literature.

Developed in collaboration with the renowned research group of Prof. Dr. Carreira of ETH Zurich.

Available for free on:

ReactionFlash by Reaxys mobile app screenshot

ReactionFlash makes learning and teaching Named Reactions easy

  • Learn Named Reactions for your next exam

  • Review and understand mechanisms

  • Explore examples published in peer-reviewed literature

  • Test your knowledge with the in-app quiz

It’s the best way to get verified and curated information on named reactions. 

-Adrian Bailey, fourth-year PhD student, ETH Zurich

ReactionFlash from Reaxys promo video

Refresh your memory using flash cards

The app is designed like a set of flash cards. Each card shows a reaction, its mechanism, examples from peer-reviewed literature and gives access to the latest publications in Reaxys. In collaboration with Professor Carreira we ensured the app covers all fundamental reactions that should be part of every chemist’s toolkit: from the best-known ones to the ones only Nobel Prize winners remember!

Examples of Reaction flashcards

Some suggestions when using ReactionFlash

Copy reaction text to clipboard: Press and hold a reaction text to copy it to the clipboard – allowing you to paste the text into an email, application, etc.

Translate the reaction text (below the name of the reaction) in any language: On iOS-based devices:

  • Press and hold a reaction text. You will be able to choose Translate which presents the translation of the reaction text in the language you select. The quality may not be perfect, but it should give you the possibility to understand the reaction text in your language.

On Android-based devices:

  • Install Google Translate (or similar). In ReactionFlash place your finger on the Reaction Text and hold for 2 seconds. You will be able to select Translate which presents the translation of the reaction text in the language you select. You may need to select the default translation service. The quality of the translation may not be perfect, but it should give you the possibility to understand the reaction text in your language.

Create Personal Sets: You can add Named Reactions to a Personal Set by taping on the three dots (bottom right) on a Named Reaction card or by selecting one or more Named Reactions from the list of Named Reactions in the Library. You also can rename or delete Personal Sets.

Share a Named Reaction or a set of Named Reactions with a friend: Alert your friends about interesting Named Reactions.

  • From a Set:

    • Tap on Select, select the Named Reaction (or a set of Named Reactions)

    • Tap on the Send icon (near to bottom right corner)

    • Select how you want to share the Named Reaction(s)

  • From a Named Reaction card (Reaction, Mechanism, Examples):

    • Tap on the Send icon (bottom right)

    • Select how you want to share this Named Reaction

If you are teaching chemistry: You may want to create a Set with Named Reactions as described above. You then email your students that Set. The students click on the link, which causes the set to be imported as Set into the students ReactionFlash instance. They now can focus the study on the Set you provided to them.

Filter a Set (5 horizontal lines sorted from top to bottom): Select a subset of the Set based on:

  • Not Viewed / meaning the Named Reactions you have not seen yet

  • Viewed - Not Tested / meaning you have seen the Named Reaction(s) but they were not shown in the Quiz yet

  • Tested - Not Mastered / meaning you were presented the Named Reaction(s) in the Quiz, but you were not able to provide the correct answer on the first attempt.

Shuffle: Tap on the shuffle icon on the Named Reaction card (icon on top right) to allow the app to propose randomly the next Named Reaction when swiping to the left or to the right, instead of presenting the next Named Reaction in an alphabetical order.

Zoom: Pinch (like you would do on any picture) or double-tap on a drawing to zoom it in or out.

Magnifying Glass: Press and hold on any drawing to obtain a magnifying glass, to view more details in the drawing.

Drawing conventions: Some of you may be surprised by the drawing conventions – we use the Reaxys drawing conventions which differ from conventions you may be familiar with (e.g., pentavalent nitrogen in a nitro group).

Support: There are no known issues with the application at the moment. For support, please send a message to [email protected]opens in new tab/window

Updated: August 2023