The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular.1122-10-7, name is 3,4-Dibromo-1H-pyrrole-2,5-dione. A new synthetic method of this compound is introduced below., 1122-10-7
To a solution of 3,4-dibromomaleimide (1.00g, 3.9mmol) and N-methylmorpholine (0.43ml_, 3.90mmol) in THF (50ml_), methylchloroformate (0.30ml_, 3.90mmol) was added and the mixture was stirred for 20minutes at room temperature. To this mixture, dichloromethane (DCM, 40ml_) was added and the organic phase was washed with water (3x100ml_), dried with MgS04. The solvent was removed in vacuo to yield the titled product as a purple powder. 1H NMR (CDCIs, 300MHz) d (ppm): 4.01 (3H, s, COCH3). 13C NMR(CDCI3, 75MHz) d (ppm): 131 .4(C=C), 54.8 (COCH3)., 1122-10-7
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Reference£º
Patent; UNILEVER PLC; UNILEVER N.V.; CONOPCO, INC., D/B/A UNILEVER; KHOSHDEL, Ezat; BATES, Susan; HAND, Rachel, Alice; HADDLETON, David, Mark; KIRBY, Gavin, William; (20 pag.)WO2019/201787; (2019); A1;,
Pyrroline – Wikipedia
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