optically inactive मीनिंग इन हिंदी

उदाहरण वाक्य

1. The hydrochloride and sulphate salts become optically inactive if heated in a closed vessel above 180 �C.
2. Since they affect chirality, they produce optically active products from optically inactive or mixed starting materials.
3. The stilbene derivatives are subject to fading upon prolonged exposure to UV, due to the formation of optically inactive cis-stilbenes.
4. His goal was to see if addition of the organic dye on the crystalline structure would induce " enhanced optical activity " ( rotation ) of light in the 500-600 nm absorption band on the otherwise optically inactive dye.
5. Optically inactive Aze was obtained in small yield from ?-aminobutyric acid by ?-bromination, followed by removal of hydrogen bromide from the intermediate ?-amino-?-butyric acid and ring closure by treatment with a barium hydroxide solution.
6. The preparation of L-( " R " )-coniine by the reduction of ?-coniceine ( L-propenylpiperidine ) by L�ffler and Friedrich incorrectly, that pelletierine was the aldehyde ( ?-2-piperidyl-propaldehyde ) corresponding to coniine, and yielded " rac-" coniine when its hydrazone was heated with sodium ethoxide in ethanol at 156 170 �C . According to these authors, D-( " S " )-coniine is rendered almost optically inactive when heated with barium hydroxide and alcohol at 180 230 �C . Leithe has shown by observation of the optical rotation of ( + )-pipecolic acid ( piperidine-2-carboxylic acid ) and some of its derivatives under varying conditions, that it must belong to the D-series of amino acids.