Txo aldehyde lossis ketone rau cawv: siv H2 nrog Raney nickel iv. … Nws yuav tsis txo cov kua qaub lossis ester. ii. LiAlH4 yuav txo qhov aldehyde, ketone, acid, lossis ester rau cov cawv sib xws.
H2 NI txo dab tsi?
Txo cov pab pawg ua haujlwm Nws feem ntau yog siv los txo cov tebchaw nrog ntau daim ntawv cog lus, xws li alkynes, alkenes, nitriles, dienes, aromatics thiab carbonyl - muaj cov khoom xyaw. … Thaum txo qis carbon-carbon ob daim ntawv cog lus, Raney npib tsib xee yuav ntxiv hydrogen nyob rau hauv ib qho kev zam.
Koj txo cov esters li cas?
Esters tuaj yeem txo tau rau 1° cawv siv LiAlH4
Esters tuaj yeem hloov mus rau 1o cawv siv LiAlH 4, thaum sodium borohydride (NaBH4) tsis muaj zog txaus txo tus neeg sawv cev los ua cov tshuaj tiv thaiv no.
Cov pab pawg ua haujlwm twg raug txo los ntawm H2 NI?
pab pawg ua haujlwm xws li acid halide, cyanide, nitro, aldehyde, ketone, alkene, thiab alkyne tau yooj yim txo los ntawm H2 / Ni.
Puas Raney nickel H2 txo cov carboxylic acids?
A mim, xaiv, thiab ntsuab txoj kevrau kev txo qis ntawm cov carboxylic acids uas tsis muaj ntsev nrog sodium borohydride–Raney nickel (W6) system hauv dej tau tshaj tawm. Txoj kev no yog siv tau thiab nyab xeeb thiab zam kev siv cov kuab tshuaj organic.
