Dab tsi yog siv rau: DIBAL yog tus neeg sawv cev muaj zog, hnyav heev. Nws yog tseem ceeb tshaj plaws rau kev txo qis ntawm esters rau aldehydes. Tsis zoo li lithium aluminium hydride, nws yuav tsis txo cov aldehyde ntxiv yog tias tsuas yog ib qho sib npaug ntxiv. Nws kuj tseem yuav txo tau lwm cov tshuaj carbonyl xws li amides, aldehydes, ketones, thiab nitriles.
Puas DIBAL-H txo carboxylic acid rau aldehyde?
DIBAL tuaj yeem siv los txo ntau pawg ua haujlwm, tab sis feem ntau yog siv los txo cov carboxylic acid esters rau aldehydes, uas tsis tuaj yeem ua tiav siv lithium aluminiumhydride, cov tshuaj txo cov tshuaj siv los txo cov carbonyl compounds.
Can DIBAL-H txo cyanide?
DIBAL-H tau ntxiv rau hauv cov tswj hwm ntawm qhov kub thiab txias kom ua tiav txo qis ib feem ntawm nitrile. Aluminium atom hauv DIBAL ua raws li Lewis acid, txais ib khub electron los ntawm nitrile.
Yuav txo tau dab tsi rau aldehyde?
Carboxylic acids, esters, thiab acid halides tuaj yeem txo qis rau aldehydes lossis ib kauj ruam ntxiv rau thawj cov cawv, nyob ntawm lub zog ntawm tus neeg sawv cev txo qis; aldehydes thiab ketones tuaj yeem txo qis raws li cov cawv thawj thiab theem nrab.
Puas DIBAL-H txo cov carboxylic acids?
DIBAL yog qhov tseem ceeb hauv cov organic synthesis rau ntau yam kev txo qis, suav nrog hloov cov carboxylic acids, lawv cov derivatives, thiab nitriles rau aldehydes. DIBAL txo qis α-βunsaturated esters rau cov allylic cawv.
