CAS No:70-23-5 Ethyl bromopyruvate|ETHYL 3-BROMOPYRUVATE;ETHYL 3-BROMO-2-OXOPROPANOATE;BROMOPYRUVIC ACID ETHYL ESTER;3-bromo-2-oxo-propanoicaciethylester;beta-Bromopyruvic acid ethyl ester

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Product Name: Ethyl bromopyruvate
Synonyms: ETHYL 3-BROMOPYRUVATE;ETHYL 3-BROMO-2-OXOPROPANOATE;BROMOPYRUVIC ACID ETHYL ESTER;3-bromo-2-oxo-propanoicaciethylester;beta-Bromopyruvic acid ethyl ester
CAS No.: 70-23-5
Molecular Formula: C5H7BrO3
Molecular Weight : 195.01
Specification : 98%
Place of Origin: China
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Ethyl bromopyruvate Chemical Properties

Boiling point	98-100 °C10 mm Hg(lit.)

density	1.554 g/mL at 25 °C(lit.)

refractive index	n20/D 1.469(lit.)

Fp	210 °F

storage temp.	2-8°C

solubility	Difficult to mix.

form	Liquid

color	Clear yellow to pink-red

Sensitive	Moisture Sensitive

BRN	1760158

InChIKey	VICYTAYPKBLQFB-UHFFFAOYSA-N

CAS DataBase Reference	70-23-5(CAS DataBase Reference)

NIST Chemistry Reference	Propanoic acid, 3-bromo-2-oxo-, ethyl ester(70-23-5)

EPA Substance Registry System	Propanoic acid, 3-bromo-2-oxo-, ethyl ester(70-23-5)



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

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

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-->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-->1,5,6,7-TETRAHYDRO-4H-INDOL-4-ONE

Raw materials	Ethyl lactate

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