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Gauri Sharma posted an Question
May 26, 2022 • 10:50 am
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30 points
30 points
- IIT JAM
- Biotechnology (BT)
Can anyone please explain me oxymercuration and demercuration reaction?
H,O: H,C CH, H, CH, CH, OH CH, C=C Ho(OAc HCC-C-H H HC--c-H Hg(OAc) C-H H H,C 8 Hg(OAc) HC Hg(OAc) Markovnikov product 2-methyl-2-butene mercurinium ion QH ÇH, QH NaBH H,C--c-H HC Hg(OAc) HC-C-CH-CH, HC H 2-methyl-2-butanol Markovnikov product
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In an oxymercuration–demercuration reaction, an alkene is treated with mercury(II) acetate, Hg(OAc)2, and the product is treated with sodium borohydride. The net result is a Markovnikov addition product in which the OH group bonds to the more substituted carbon atom of the alkene. The key difference between oxymercuration and demercuration is that oxymercuration involves an electrophilic addition where an alkene transforms into a neutral alcohol, whereas demercuration involves the conversion of an alkene into Hg2+ salt and an organomercury intermediate.