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ETHYL DIBROMOACETATE

ETHYL DIBROMOACETATE ??? ???
?? ??:
617-33-4
???:
ETHYL DIBROMOACETATE
???(??):
ethyl 2,2-dibroMoacetate;ETHYL DIBROMOACETATE;dibromo-aceticaciethylester;Dibromoacetic acid, ethyl ester;Ethyl dibromoacetate, tech., 83%;Ethyl dibromoacetate, pract., 95%;Ethyl dibromoacetate , 83%, tech.;Acetic acid, dibromo-, ethyl ester;Acetic acid, 2,2-dibromo-, ethyl ester
CBNumber:
CB8338109
???:
C4H6Br2O2
??? ??:
245.9
MOL ??:
617-33-4.mol

ETHYL DIBROMOACETATE ??

?? ?
77 °C (12 mmHg)
??
1.902
???
1.492-1.502
???
76-78°C/12mm
???
??, ???, CH2Cl2, ???, EtOAc, ???? ?????.
EPA
Acetic acid, dibromo-, ethyl ester (617-33-4)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 36/37/38
????? 37/39-26
????(UN No.) 3265
TSCA Yes
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H301 ??? ??? ?? ?? ?? - ?? ?? 3 ?? GHS hazard pictograms P264, P270, P301+P310, P321, P330,P405, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ?? GHS hazard pictograms
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P405 ???? ?????.
NFPA 704
1
2 0

ETHYL DIBROMOACETATE C??? ??, ??, ??

??

Ethyl dibromoacetate is used in preparation of α-bromo and α,α-dialkyl substituted esters; undergoes Reformatsky/Darzens reactions with aldehydes and ketones.

??? ??

clear colorless to slighlty brown liquid

??

Ethyl dibromoacetate can be used to produce diphenoxy-acetic acid ethyl ester. It is used in organic synthesis.

Purification Methods

Wash the ester briefly with conc aqueous NaHCO3, then with aqueous CaCl2. Dry it with CaSO4 and distil it under reduced pressure. [Hornyak & Amis J Am Chem Soc 79 2079 1957, Beilstein 2 H 219, 2 I 97, 2 III 484, 2 IV 533.]

ETHYL DIBROMOACETATE ?? ?? ? ???

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ETHYL DIBROMOACETATE ?? ??

???( 55)?? ??
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ETHYL DIBROMOACETATE ?? ??:

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