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Oxidation of quinoline affords quinolinic acid (pyridine-2,3-dicarboxylic acid), a precursor to the herbicide sold under the name "Assert". [ 8 ] The reduction of quinoline with sodium borohydride in the presence of acetic acid is known to produce Kairoline A . [ 15 ] (
Such reactions often install a hydroxyl group (an –OH functional group) on the carbon across from the ring nitrogen (i.e., the C-4 positions). An example of such a synthesis is the Camps cyclization, which, depending on starting materials and reaction conditions, can give both 2-hydroxyquinolines (B) and 4-hydroxyquinolines (A) as shown. The ...
Quinaldine or 2-methylquinoline is an organic compound with the formula CH 3 C 9 H 6 N. It is one of the methyl derivatives of the heterocyclic compound quinoline. It is bioactive and is used in the preparation of various dyes. It is a colorless oil but commercial samples can appear colored. [1]
2-Chloroquinoline is an organic compound with the formula ClC 9 H 6 N. It is one of several isomeric chloro derivatives of the bicyclic heterocycle called quinoline . A white solid, 2-chloroquinoline can be prepared from vinylaniline and phosgene. [ 1 ]
The mixture produced a polyphosphoric ester (PPE) catalyst that proved to be more effective as the dehydrating agent than concentrated sulfuric acid (H 2 SO 4), which is commonly used in the Combes quinoline synthesis. Using the modified Combes synthesis, two possible regioisomers were found: 2-CF 3 - and 4-CF 3-quinolines.
It is the majority tautomer in equilibrium with 2-quinolinol. The compound can be classified as a cyclic amide, and as such is used as an isostere for peptides and other pharmaceutically inspired targets. [1] [2] The 4-methyl-2-quinolone can be prepared by dehydration of acetoacetanilide. [3] 2-Quinolone (right) and its tautomer 2 ...
Ozonolysis of oleic acid is an important route to azelaic acid. The coproduct is nonanoic acid: [15] H 17 C 8 CH=CHC 7 H 14 CO 2 H + 4"O" → HO 2 CC 7 H 14 CO 2 H + H 17 C 8 CO 2 H. Esters of azelaic acid find applications in lubrication and plasticizers. Neutralizing oleic acid with ethanolamines gives the protic ionic liquid monoethanolamine ...
Another example of this is the relationship between oleic acid and elaidic acid; oleic acid, the cis isomer, has a melting point of 13.4 °C, making it a liquid at room temperature, while the trans isomer, elaidic acid, has the much higher melting point of 43 °C, due to the straighter trans isomer being able to pack more tightly, and is solid ...