Ethyl 4,4-difluoro-3-oxobutyrate CAS: 352-24-9

Ethyl 4,4-difluoro-3-oxobutyrate muaj cov qauv uas pawg difluoromethyl (-CF2) txuas nrog β-ketoester backbone, thiab ib qho ntawm cov hydrogens hloov los ntawm pawg ethyl (-C2H5). Cov qauv no cuam tshuam rau nws cov yam ntxwv lub cev thiab tshuaj. Nws feem ntau muaj nyob ua kua tsis muaj xim nrog lub ntsiab lus kub ib puag ncig 130 ° C thiab qhov ceev ntawm kwv yees li 1.27 g / cm³. Cov tshuaj no yaj tau yooj yim hauv dej tab sis yaj tau yooj yim hauv cov kuab tshuaj organic xws li ethanol thiab acetone. Siv Kev Lag Luam Tshuaj Tsw Qab: Ethyl 4,4-difluoro-3-oxobutyrate yog siv dav hauv kev lag luam tshuaj tsw qab vim nws cov txiv hmab txiv ntoo aroma. Nws ua haujlwm ua cov khoom xyaw muaj txiaj ntsig hauv tshuaj tsw qab, colognes, thiab lwm yam khoom tsw qab. Kev Tsim Tshuaj: Cov tshuaj ua haujlwm ua lub tsev thaiv ntau yam hauv kev tsim cov organic. Nws koom nrog ntau yam kev cuam tshuam los tsim cov khoom siv uas tseem ceeb hauv kev lag luam tshuaj thiab agrochemical. Nruab Nrab: Hauv cov tshuaj lom neeg organic, ethyl 4,4-difluoro-3-oxobutyrate ua haujlwm ua ib qho nruab nrab rau kev tsim cov tshuaj sib xyaw ua ke, pab txhawb rau kev tsim cov ntaub ntawv tshiab thiab cov txheej txheem tshuaj lom neeg. Kev Tsim Khoom Ethyl 4,4-difluoro-3-oxobutyrate tuaj yeem tsim los ntawm ntau txoj kev. Ib txoj hauv kev siv ntau yog kev sib xyaw ntawm ethyl acetoacetate thiab 2,2-difluoroethyl bromide nyob rau hauv cov xwm txheej yooj yim. Qhov kev sib xyaw no ua rau muaj ethyl 4,4-difluoro-3-oxobutyrate ua cov khoom tseem ceeb, uas tom qab ntawd tuaj yeem ua kom huv si kom tau txais cov txiaj ntsig siab thiab kev ntshiab. Hauv kev xaus, ethyl 4,4-difluoro-3-oxobutyrate yog ib qho tshuaj sib xyaw ua ke tseem ceeb hauv kev tsim tshuaj tsw qab, kev tsim tshuaj lom neeg, thiab kev siv hauv kev lag luam. Nws cov khoom sib txawv, suav nrog kev yaj thiab cov qauv tshuaj tshwj xeeb, ua rau nws muaj txiaj ntsig zoo thoob plaws ntau qhov chaw, pab txhawb rau kev tsim cov khoom siv sib txawv thiab cov khoom lag luam.