21691-50-9 L-Ala-Otbu

An yi shi daga halayen esterization na inorganic acid ko Organic acid ko barasa.Barasa ko phenol ko acidic anhydride, barasa da ethylene, free acidic acid da fatty nitrogen da aka samu suma na iya samar da ester.Hydrogen akan alpha-carbon a cikin kwayoyin ester yana rasa barasa na kwayoyin halitta tare da wani ester kwayoyin halitta a karkashin yanayin alkaline don samar da β-keto ester, wanda ake kira ester contraction reaction.Alal misali, acetyl acetate an samar da shi don samar da acetyl ethyl acetate.Wannan halayen yana da mahimmanci sosai a cikin haɗin kwayoyin halitta.
Sunan ester ya fito ne daga daidai sunan carboxylic acid da barasa ko phenol, kamar "wani acid da wani ester".Ana kiran esters da'ira lactone (lactone).Abubuwan sinadarai na ester sun yi kama da amyl niche anhydride, wanda ke da haɗari ga hydrolysis, barasa da ammoniya.Low-grade ester mai ƙamshi ne kuma ruwa mara launi, kuma ester ci-gaba yana da ƙarfi.Estes sune mahimman abubuwan kaushi da kayan aikin roba, kuma wasu esters sune kwayoyi da kansu.Dangane da nau'in acid, ana iya raba ester zuwa inorganic acid ester da Organic acid ester.Etate, ethyl acetate shine mai ester, acetate shine ester aromatic, kuma namanonate shine ester cyclic.
Ester gabaɗaya ruwa ne marar launi tsaka tsaki.Ester din da tseren kitse da barasa mai kitse ke samarwa yana da kamshi na 'ya'yan itace, wanda za'a iya narkar da shi cikin ruwa, kuma yana da wahala a narke cikin ruwa.Wani wurin walƙiya na ester yana da ƙasa kuma galibi yana ƙonewa.Za a iya shayar da tururi ta hanyar numfashi, kuma ester na ruwa na iya shafe ta fata.Bayan an sha, sai a narkar da shi a cikin plasma, wasu kuma ana fitar da su ta huhu da koda.Bayan wasu hydrolysis, juya cikin tsarin rayuwa na al'ada.Bugu da ƙari ga kaɗan daga cikin mahadi na ester, yawancin su suna da guba sosai kuma suna da guba sosai, kuma yawancin su micro-toxic zuwa matsakaici masu guba, kuma yawancin su ba su da guba.Akwai esters 38 a cikin rukunin kamshin shayi.Yawanci: ① fatty ester: wanda aka samar da barasa da mai, irin su ethyl acetate, hexyl hexyate.② Aromatic ester: wanda aka samar ta hanyar barasa da aromatic acid, kamar Shun-3-hexylzyl.③ Circin esters: barasa da cyclocar ne suka haifar, kamar jasmone hyacxide.Ester gabaɗaya tsaka tsaki ne, wanda za'a iya sanya shi cikin ruwa kuma yana samar da barasa da acid.Ƙananan lambobi na carbon yawanci ruwa ne masu ƙamshi, kuma manyan lambobin carbon ruwa ne da daskararru waɗanda ba za su iya narkewa a cikin ruwa ba.