3-Hydroxybutanal
3-Hydroxybutanal (acetaldol, aldol) bụ ihe dị n'ime ala nke nwere usoro CH3CH (OH) CH2CHO. A na-ahazi ya dị ka aldol na okwu "aldol" nwere ike izo aka kpọmkwem na 3-hydroxybutanal. Ọ bụ n'ụzọ iwu kwadoro ngwaahịa ọrụ nkụzi afọ okuku n'oge ochie nakwa n'oge nke dimerization nke acetaldehyde. Mmiri na-enweghị ụcha ma ọ bụ na-acha odo odo, ọ bụ ihe dịgasị iche iche na nke ụwa họrọ site na iji bịa na ímé ihe ọ bụla n'ime bara uru nke nwere mmetụta dịgasị anya. Ngwakọta ahụ bụ chiral ọ bụ ezie na a naghị ejikarị akụkụ a eme ihe.
Mmepụta
[dezie | dezie ebe o si]Acetaldehyde dimerizes mgbe a gwọrọ ya na mmiri sodium hydroxide:
- 2 CH3CHO → CH3CH (OH) CH2CHO + H2O
Mmeghachi omume na ojiji
[dezie | dezie ebe o si]Mmiri na-adịghị n'ahụ nke 3-hydroxybutanal na-enye crotonaldehyde. Distillation nke 3-hydroxybutanal na-amanye nke ọma iji mee mgbanwe a:
- CH3CH (OH) CH2CHO → CH3CH=CHCHO + H2O
Hydrogenation nke 3-hydroxybutanal na-enye 1,3-butanediol:
- CH3CH (OH) CH2CHO + H2 → CH3CH
Diol a bụ onye na-ebute 1,3-butadiene, onye na-esote polymer dị iche iche.
Polymerization nke 3-hydroxybutanal bụkwa nke na-eme n'onwe ya, mana enwere ike ịkwụsị ya na mgbakwunye mmiri.
A na-eji Aldol eme ihe n'ime ihe na-esi ísì ụtọ na n'ime mmiri.[1]
Ojiji mbụ ma ọ bụ niche
[dezie | dezie ebe o si]A na-eji ya eme ihe n'oge gara aga na ọgwụ dị ka ọgwụ na sedative.[2]
Hụkwa
[dezie | dezie ebe o si]- 4-Hydroxybutanal
Ntụaka
[dezie | dezie ebe o si]- ↑ American Heritage Dictionary, 1973.
- ↑ Hans Brandenberger, Robert A. A. Maes. (1997). Analytical Toxicology: For Clinical, Forensic, and Pharmaceutical Chemists. New York: de Gruyter.