ChemicalBook CAS DataBase List 1,1-Dibromoethane

1,1-Dibromoethane synthesis

13synthesis methods

Product Name:1,1-Dibromoethane
CAS Number:557-91-5
Molecular formula:C2H4Br2
Molecular Weight:187.86

74-84-0
56 suppliers
$269.00/110 g

74-96-4 Synthesis

74-96-4
431 suppliers
$9.00/5g

557-91-5
62 suppliers
$45.00/100mg

78-74-0 Synthesis

78-74-0
46 suppliers
$139.00/25mL

106-93-4
379 suppliers
$15.00/5g

Yield:-

Reaction Conditions:

with bromine at 21; for 0.0075 h;Product distribution / selectivity;

Steps:

1
A stream of ethane with a flow rate of 5 standard ml/min is passed through a bromine bubbler held at 21° C. The resulting mixture of ethane and bromine having a molar ratio of 3.6:1 (ethane:bromine) is passed through a glass reactor having a 3.6 mm inside diameter. The glass reactor is packed with borosilicate beads and the average residence time in the reactor is 27 s. 100% of the bromine is converted. 24% of the ethane is converted with selectivities of 86% to ethyl bromide, 12% to 1,2-dibromoethane, 1% to 1,1-dibromoethane, and <1% of 1,1,2-tribromoethane.

References:

Weiss, Michael J.;Sun, Shouli US2006/229475, 2006, A1 Location in patent:Page/Page column 5

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