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The compound is prepared by base-catalyzed condensation of 1-hydroxyhexane-2,5-dione, a derivative of hydroxymethylfurfural. [2] The structure has been confirmed by X-ray crystallography. [2] Quantum calculations also indicate that the enol is strongly favored relative to the diketo tautomer.
Triethylenetetramine (TETA and trien), also known as trientine when used medically, is an organic compound with the formula [CH 2 NHCH 2 CH 2 NH 2] 2.The pure free base is a colorless oily liquid, but, like many amines, older samples assume a yellowish color due to impurities resulting from air oxidation.
From cyclohexene, 3-benzoyloxycyclohexene is formed with TBPB in the presence of catalytic amounts of copper(I)bromide in 71 to 80% yield. This allylic oxidation of alkenes, also known as Kharasch-Sosnovsky oxidation , generates racemic allylic benzoates in the presence of catalytic amounts of copper(I)bromide .
30.77 kJ/mol at 80.1 °C Std entropy change of vaporization, Δ vap S o: 113.6 J/(mol·K) at 25 °C 87.1 J/(mol·K) at 80.1 °C Solid properties Std enthalpy change of formation, Δ f H o solid? kJ/mol Standard molar entropy, S o solid: 45.56 J/(mol K) Heat capacity, c p: 118.4 J/(mol K) at 0 °C Liquid properties Std enthalpy change of ...
It was first isolated from wood by Finnish scientist, Koch, in 1881, [3] but first became commercially viable, with a price close to sucrose, in 1930. [ 4 ] Xylose is also the first saccharide added to the serine or threonine in the proteoglycan type O-glycosylation , and, so, it is the first saccharide in biosynthetic pathways of most anionic ...
Ohio State: It was the Buckeyes' biggest margin of victory over a No. 1 team in school history. No doubt about it, they look like the best team still playing. Oregon: Having 3 1/2 weeks off with ...
If you suspect child abuse, call the Childhelp National Child Abuse Hotline at 1-800-4-A-Child or 1-800-422-4453, or go to www.childhelp.org. All calls are toll-free and confidential. The hotline ...
A secretary bought three shares of her company's stock for $60 each in 1935. Grace Groner reinvested her dividends for 75 years, and her stake ballooned to $7.2 million.