Dienes body and the activity of dienes body size how comparison in A synthetic reaction, namely the reaction, D - A conjugated dienes, called single olefin dienes body, called pro dienes body due to the reaction mechanism is electronic flow from dienes body to kiss dienes body, therefore, dienes on connection for the electronic groups, such as, CH3 - such as alkyl, pro dienes connecting the electron-withdrawing groups on the body, such as, reactions such as NO2 - are more likely to be
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