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Dimethyl oxalate is an organic compound with the formula (CO 2 CH 3) 2 or (CH 3) 2 C 2 O 4. ... The synthesis gas is mostly obtained from coal or biomass.
Oxalate (systematic IUPAC name: ethanedioate) is an anion with the chemical formula C 2 O 2− 4. This dianion is colorless. It occurs naturally, including in some foods. It forms a variety of salts, for example sodium oxalate (Na 2 C 2 O 4), and several esters such as dimethyl oxalate ((CH 3) 2 C 2 O 4). It is a conjugate base of oxalic acid.
Oxalyl chloride was first prepared in 1892 by the French chemist Adrien Fauconnier, who reacted diethyl oxalate with phosphorus pentachloride. [5] It can also be prepared by treating oxalic acid with phosphorus pentachloride. [6] Oxalyl chloride is produced commercially from ethylene carbonate.
Dimethyl carbonate and dimethyl oxalate are produced industrially using carbon monoxide and an oxidant, in effect as a source of CO 2+. [2]+ + + The oxidative carbonylation of methanol is catalyzed by copper(I) salts, which form transient carbonyl complexes.
ODAP can be synthesized from L-α,β-diaminopropionic acid and dimethyl oxalate at a pH of 4.5-5. Cupric oxide can be used to temporarily protect the α-NH2 group of the L-α,β-diaminoproprionic acid during the reaction. [2] The pathway for one chemical synthesis of ODAP
Magnesium oxalate can by synthesized by combining a magnesium salt or ion with an oxalate. Mg 2+ + C 2 O 4 2− → MgC 2 O 4. A specific example of a synthesis would be mixing Mg(NO 3) 2 and KOH and then adding that solution to dimethyl oxalate, (COOCH 3) 2. [10] When heated, magnesium oxalate will decompose.
Diphenyl oxalate (trademark name Cyalume) is a solid whose oxidation products are responsible for the chemiluminescence in a glowstick. This chemical is the double ester of phenol with oxalic acid. Upon reaction with hydrogen peroxide, 1,2-dioxetanedione is formed, along with release of the two phenols. [2]
Oxaloacetic acid (also known as oxalacetic acid or OAA) is a crystalline organic compound with the chemical formula HO 2 CC(O)CH 2 CO 2 H. Oxaloacetic acid, in the form of its conjugate base oxaloacetate, is a metabolic intermediate in many processes that occur in animals.