If you believe a reaction will take place, draw the structural formula for the chief organic product using the drawing window on the right. If no reaction is expected, draw the starting reactant structure.
Check your answer by clicking the "Check Answer" button under the drawing window. A response will appear in the text box below.

A new problem will be displayed by clicking the New Problem button at the top of the page.

You have to enable Java and JavaScript on your machine !


In a few cases more than one organic product is formed. Write the formula for the major product from the reactant (on the left in the equation), ignoring byproducts from the reagents. In a few cases stereochemical configuration must be designated. Both chiral and achiral stereoisomers may be drawn, and (E/Z) isomers of appropriately substituted double bonds are recognized. Isomerism due to chiral centers is specified by the wedge/hatched bond tool. Repeated clicking on a bond alternates its orientation. Two of the bonds to a chiral center must lie in the plane of the drawing and must connect heavy atoms (not hydrogen). The remaining bond(s) should then be drawn as wedge and hatched lines (do not draw bonds to hydrogen.
To practice using the Molecular Editor Click Here

This script written by William Reusch, Dept. of Chemistry, Michigan State University. Please send comments and corrections to whreusch@pilot.msu.edu.
JME Molecular Editor v2002.05 by: by Peter Ertl