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Glycol from ethylene dibromide

GLYCOL (ETHYLENE GLYCOL) FROM ETHYLENE DIBROMIDE 1 [Pg.114]

Glycoldiacetate.—A mixture of 63 g. (0-33 mole) of ethylene dibromide, 20 g. of glacial acetic add, and 60 g. of freshly fused and [Pg.114]

If it is desired to improve the yield, the portions which pass over below 180° are heated once again for three hours with an equal weight of potassium acetate and are then treated as above described. In this way the yield is increased by another 15 g. [Pg.115]

The reactions of the simplest dihydric alcohols, the 1 2-glycols, may be illustrated by means of the initial member of the series. [Pg.116]

When heated with sulphuric acid glycol loses water and yields acetaldehyde. [Pg.116]

Synthesis from polyethylene glycol dibromides. Treatment of a poly (ethylene glycol) dibromide with Ba(OH)2 8H2O as a source of OH" and Ba followed by pyrolysis results in a crown ether. The Ba ion acts as a template. The present method requires only one building block (with one less oxygen than the crown ether formed). Highest yields (50%) are obtained with 18-crown-6. ... [Pg.68]

See other pages where Glycol from ethylene dibromide is mentioned: [Pg.115]    [Pg.116]    [Pg.115]    [Pg.116]    [Pg.333]    [Pg.116]    [Pg.575]    [Pg.292]    [Pg.201]    [Pg.887]    [Pg.2229]    [Pg.57]    [Pg.887]    [Pg.389]    [Pg.528]    [Pg.251]    [Pg.181]    [Pg.34]    [Pg.871]    [Pg.34]    [Pg.406]    [Pg.533]   


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Dibromide

Dibromides

Ethylene dibromide

Ethylene glycol from

From glycols

Glycol dibromide

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