Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 5932-27-4, name is Ethyl 1H-pyrazole-3-carboxylate, This compound has unique chemical properties. The synthetic route is as follows., name: Ethyl 1H-pyrazole-3-carboxylate
To a solution of ethyl 1 H-pyrazole-3-carboxylate (2 g) in MeCN (40 ml) was added cesium carbonate (4.65 g) and the mixture stirred for 30 min when 4-(bromomethyl)tetrahydro-2H- pyran (2.81 g) was added and the mixture stirred at RT for 18 h. The solvent was removed in vacuo and the residue partitioned between dichloromethane (50 ml) and water (20 ml), separated by hydrophobic frit and concentrated. The filtrate was purified by silica (2 x 100 g) cartridge on Flashmaster II using a gradient of DCM and ethyl acetate to give the title compound 1 as a colourless oil, 0.944 g and title compound 2, as a colourless oil, 1 .026g.1 ; LCMS (method B); Rt = 0.90 min, MH+ = 239.2; LCMS (method B); Rt = 0.75 min, MH+ = 239.
Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 5932-27-4.
Reference:
Patent; GLAXO GROUP LIMITED; BALDWIN, Ian Robert; DOWN, Kenneth David; FAULDER, Paul; GAINES, Simon; HAMBLIN, Julie Nicole; JONES, Katherine Louise; JONES, Paul Spencer; LE, Joelle; LUNNISS, Christopher James; PARR, Nigel James; RITCHIE, Timothy John; ROBINSON, John Edward; SIMPSON, Juliet Kay; SMETHURST, Christian Alan Paul; WO2011/67365; (2011); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics