Camphor
Step 1 of up to 3Camphor is the classic bicyclic terpene ketone, found in camphor laurel, and the molecule on which Bredt cut his teeth working out bridged-bicyclic structure. Industrially it comes from alpha-pinene via camphene and borneol; the camphene → borneol step is a Wagner-Meerwein rearrangement that we will fold into a single disconnection here. Two clean cuts: undo the ketone (oxidation of borneol), then undo the alcohol (rearrangement hydration of camphene).
Pick the bond you want to cut from the strip below the structure.
Pick a bond to disconnect
Use the bond strip below the structure to pick the bond you want to cut. Each chip shows the atom indices and the element pair so you can read them with a screen reader.
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