Vim li cas 2 butanol chiral?
Vim li cas 2 butanol chiral?

Video: Vim li cas 2 butanol chiral?

Video: Vim li cas 2 butanol chiral?
Video: 21. Стереохимия: Часть 7 - Молекулы с более чем одним хиральным центром 2024, Kaum ib hlis
Anonim

2 - Butanol , a chiral molecule

Molecules I thiab II muaj kev sib raug zoo ntawm daim iav duab tab sis lawv tsis yog superimposable. Yog li ntawd, lawv yog enantiomers: 2 - butanol yog chiral . Cov pa roj carbon atom C- 2 ntawm 2 - butanol nqa plaub qhov sib txawv H, CH3, OH, and CH 2 CH3.

Ib yam li ntawd, puas yog 2 butanol chiral?

Txawm tias 2 - butanol yog a chiral molecule thiab yog li ntawd muaj ob enantiomers, qhov zoo sib xws molecule 2 -propanol yog achiral thiab tsis muaj nyob ua ib khub enantiomeric. Koj tuaj yeem pom tias qhov nruab nrab carbon ntawm 2 - butanol (ib qho cim los ntawm lub hnub qub) yog qhov chaw stereogenic, muaj H, OH, methyl, thiab ethyl pawg txuas nrog.

Puas yog 2 propanol chiral? 2 - propanol , tsis zoo li 2 -butanol, tsis yog chiral molecule. Cov pa roj carbon # 2 yog sib koom ua ke rau ob qho tib si hloov pauv (methyl pawg), thiab yog li nws tsis yog ib qho chiral chaw. Nco ntsoov tias 2 - propanol yog superimposable ntawm nws tus kheej daim iav duab.

Kuj nug, dab tsi yog 2 butanol siv rau?

Txawm tias ib txhia 2 - butanol yog siv li ib qho hnyav, nws yog tsuas yog hloov mus rau butanone (methyl ethyl ketone, MEK), uas yog ib qho tseem ceeb ntawm cov kuab tshuaj thiab pom nyob rau hauv ntau cov tshuaj ntxuav tsev thiab cov xim tshem tawm.

Puas yog 2 butanol thawj lossis theem nrab?

2 - Butanol los yog sec- butanol , los yog sec-butyl cawv, lossis s-butyl cawv, yog plaub-carbon saw, nrog OH pawg ntawm cov pa roj carbon thib ob. (Txij li thaum cov pa roj carbon monoxide txuas nrog ob lwm carbons, nws yog theem nrab , li no lub prefix "sec").

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