SN1 reactions are accompanied by racemisation in optically active alkyl halide .explain?
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23
in sn1 reaction the attack is from back side of leaving group results into recemisation
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65
see SN1 reactions are always accompanied by the formation of carbocation as an intermediate. carbocations are free of strain and they can rotate in any direction which means there can be either dextro, leavo or both(optically active) hence it shows racemisation( a mixture containing both dextro leavo)
due to the peculiar symmetry of carbocation , the attacking species can attack from any direction which racemises further
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