Osazone xeem yog ua rau txhua lub qab zib hauv cov dej kub npau npau thiab sau tseg lub sijhawm tshwm sim ntawm cov muaju. Tom qab ntawd cov duab ntawm osazone ntawm txhua lub suab thaj tau tshuaj xyuas nyob rau hauv lub microscope.
Osazone tsim li cas?
Osazones yog ib chav kawm ntawm carbohydrate derivatives pom nyob rau hauv cov organic chemistry tsim thaum txo cov suab thaj yog reacted nrog ntau tshaj ntawm phenylhydrazine ntawm kub kub.
Dab tsi yog osazone tsim cov tshuaj tiv thaiv?
➢ Osazone Tsim: Lub tawm tsam ntawm peb lub moles ntawm phenylhydrazine thiab ib lub mole ntawm aldose tsim cov khoom siv crystalline hu ua phenylosazone (Scheme 1). ➢ Phenylosazones crystallize tau yooj yim (tsis zoo li cov suab thaj) thiab yog cov txiaj ntsig zoo rau kev txheeb xyuas cov suab thaj.
Dab tsi qab zib muab tib yam osazone Vim li cas?
Yog li, peb tuaj yeem hais ntawm no tias aldose thiab ketose muaj tib osazone vim lawv muaj cov qauv zoo ib yam ntawm txhua carbons txais C1 thiab C2. Piv txwv li, cov piam thaj thiab fructose los ntawm glucosazone, thiab fructosazone muaj cov qauv zoo sib xws. Li no, (A) yog qhov kev xaiv raug.
Cov tshuaj tiv thaiv ntawm phenylhydrazine rau qabzib yog dab tsi?
Ceebtoom: Cov tshuaj tiv thaiv ntawm cov piam thaj nrog phenylhydrazine muab glucose phenylhydrazonewhereas cov tshuaj tiv thaiv cov piam thaj nrog ntau tshaj phenylhydrazine muab osazone. Cov suab thaj uas muaj dawb aldehyde lossis ketone pawg yog hu ua txo cov suab thaj.
