Others pivot from both bottom (like a hopper) and the side (like a casement). Also called Dual Action. Double-Hung Windows: Include offset upper and lower sashes, which can both move up and down in the frame. A window having two vertically sliding sash, each closing a different part of the window.
Reaction of sugar oxazolines with primary amines. In order to scrutinize the reaction pathway and structure of the reaction product, we started with a simple sugar oxazoline and a primary amine, carrying no other functional groups.
1 Amines with low molar mass are soluble in polar solvents like water. 2  The boiling point of amines lies between the comparable alkane and alkanol (alcohol). 3  Amines are weak bases. 4  In reactions with aqueous mineral acids or carboxylic acids, amines form salts. 5  In reactions with hydrogen halides, amines form salts.