Puas muaj peev xwm rov kho dua hauv Oxymercuration Demercuration?
Puas muaj peev xwm rov kho dua hauv Oxymercuration Demercuration?

Video: Puas muaj peev xwm rov kho dua hauv Oxymercuration Demercuration?

Video: Puas muaj peev xwm rov kho dua hauv Oxymercuration Demercuration?
Video: UA KAWG PEEV XWM -May maylee [official] New Song/MV/VDO 2024, Kaum ib hlis
Anonim

Yam ntxwv ntawm oxymercuration - demercuration yog: no kev kho dua tshiab (tsis muaj carbocation nruab nrab, cyclic mercurinium ion yog qhov nruab nrab) Cov khoom lag luam zoo sib xws rau (yuav luag tshwj xeeb) Markovnikov ntxiv dej (Regioselectivity kwv yees los ntawm Markovnikov txoj cai nyiam feem ntau cov cawv hloov pauv)

Dhau li ntawd, puas yog Oxymercuration Demercuration syn lossis anti?

Lub nucleophile yuav tawm tsam mercuronium ion nyob rau lub sijhawm no. Yog li ntawd, cov nucleophile tawm tsam cov pa roj carbon ntau dua vim nws khaws cov cwj pwm zoo dua li cov pa roj carbon tsawg dua. Stereochemically, oxymercuration yog ib tiv thaiv ntxiv.

Qhov thib ob, yog Oxymercuration stereospecific? Oxymercuration yog ib qho tshwj xeeb electrophilic ntxiv. Nws yog anti- stereospecific thiab regioselective. Regioselectivity yog ib txoj hauv kev uas cov neeg hloov pauv tau xaiv ib qho kev taw qhia nws nyiam kom txuas mus rau tag nrho lwm cov lus qhia ua tau.

Puas yog Oxymercuration Demercuration anti markovnikov?

Oxymercuration - Demercuration yog ob kauj ruam txoj kev siv los tsim cov cawv. Cov tshuaj tiv thaiv pib hauv a Markovnikov yam thiab yog stereospecific ( tiv thaiv ntxiv). Ob kauj ruam ntawm oxymerecuration-demercuraton yuav siv qhov chaw ntawm lub ntsej muag ntawm ob daim ntawv cog lus tsim trans stereochemistry.

Oxymercuration txo yog dab tsi?

Oxymercuration txo . Cov oxymercuration Cov tshuaj tiv thaiv yog ib qho electrophilic ntxiv cov tshuaj tiv thaiv kab mob uas hloov cov alkene rau hauv cov cawv nruab nrab.

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