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.
This happens with 3Âº-amines, and the salts are usually soluble in water. The reactions of nitrous acid with 1Â°- and 2Â°- aliphatic amines may be explained by considering their behavior with the nitrosonium cation, NO(+), an electrophilic species present in acidic nitrous acid solutions.