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| | Ethyl bromopyruvate Basic information |
| | Ethyl bromopyruvate Chemical Properties |
| | Ethyl bromopyruvate Usage And Synthesis |
| Chemical Properties | Clear yellow to pink-red liquid | | Uses | Employed in a synthesis of thioxothiazolidines from primary amines and carbon disulfide.1 | | Uses | Ethyl 3-bromopyruvate is employed in a synthesis of thioxothiazolidines from primary amines and carbon disulfide. | | Hazard | Severe poison, lachrymator, irritant. | | Purification Methods | The most likely impurity is free acid (bromopyruvic or bromoacetic acids). Dissolve the ester in dry Et2O or dry CHCl3, stir with CaCO3 until effervescence ceases, filter, (may wash with a little H2O rapidly), dry (MgSO4) and distil it at least twice. The 2,4-dinitrophenylhydrazone has m 144-145o. [Burros & Holland J Chem Soc 672 1947, Letsinger & Laco J Org Chem 21 764 1956, Kruse et al. J Am Chem Soc 76 5796 1954, Beilstein 3 IV 1519.] LACHRYMATORY. |
| | Ethyl bromopyruvate Preparation Products And Raw materials |
| Raw materials | Ethyl lactate | | Preparation Products | 2-(3-PYRIDYL)-1,3-THIAZOLE-4-CARBOXYLIC ACID-->4-Hydroxyindole-->4-(MORPHOLIN-4-YLMETHYL)-1,3-THIAZOL-2-AMINE-->TERT-BUTYL 4-(4-FORMYL-1,3-THIAZOL-2-YL)TETRAHYDRO-1(2H)-PYRIDINECARBOXYLATE-->4-Thiazolemethanamine, 2-amino-N,N-dimethyl--->2-PHENYL-1,3-THIAZOLE-4-CARBALDEHYDE-->2-PHENYL-1,3-THIAZOLE-4-CARBONYL CHLORIDE-->IMIDAZO[1,2-A]PYRIDINE-2-CARBOXYLIC ACID-->4-(chloromethyl)-2-thiazolamine-->ETHYL 2-METHYLTHIAZOLE-4-CARBOXYLATE-->2-Methyl-1,3-thiazole-4-carboxylic acid-->2-PHENYL-1,3-THIAZOLE-4-CARBOHYDRAZIDE-->(2-PHENYL-1,3-THIAZOL-4-YL)METHANOL-->Ethyl 2-bromothiazole-4-carboxylate-->2-[4-(TRIFLUOROMETHYL)PHENYL]-1,3-THIAZOLE-4-CARBALDEHYDE-->RARECHEM AL BI 1318-->4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID-->ETHYL 2-CHLOROOXAZOLE-4-CARBOXYLATE-->1,5,6,7-TETRAHYDRO-4H-INDOL-4-ONE-->4-Thiazolecarboxylic acid, 2-hydrazino-, ethyl ester |
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