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Explain electron movement in organic reaction |
Answer» Solution :The MOVEMENT of electron in organic reactions can be shown by curved-arrow notation. It SHOWS how changes in bonding occur due to electronic redistribution during the reaction. To show the change in position of a pair of electrons, curved arrow starts from the point from where an electron pair is shifted and it ends at a location to which the pair of electron may move. Presentation of shifting of electron pair is GIVEN below:  From `pi` bond to adjacent bond positions.  From `pi` bond to adjacent atom  From atom to adjacent bond positions. Movement of single electron: Movement of single electron is indicated by a single barbed .fish hooks. (i.e. HALF headed curved arrow). For example: (i) Transfer of electron in ethanol from hydroxide ion is as follow.  (ii) In dissociation of chloromethane, the movement of electron using curved arrows can be depicted as FOLLOWS: 
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