Colorless to light yellow to dark yellow to brown liquid
1.744 to 1.768
1.4890 to 1.4940
Store long-term at 2-8°C
Product may darken during storage.
Insoluble in water
REVIEW Carboxylic acids protected as their 2-bromoethyl esters are readily deprotected by cleavage with sodium trithiocarbonate (1). 2-Bromoethyl esters of amino acids have been cleaved by conversion with NaI (Finkelstein) to the corresponding iodo esters, followed by reductive cleavage with Zn in DMF (2-3).