In organic chemistry, anti-periplanar, or antiperiplanar, describes the A−B−C−D bond angle in a molecule. In this conformer, the dihedral angle of the...
11 KB (980 words) - 07:49, 9 May 2024
ketoximes and N-chloro/N-fluoro imines, with the migrating group being anti-periplanar to the leaving group on the nitrogen. Certain conditions have been...
14 KB (1,419 words) - 04:50, 28 December 2023
stereochemistry of the starting material. E2 eliminations require anti-periplanar geometry, in which the proton and leaving group lie on opposite sides...
14 KB (1,543 words) - 11:38, 6 November 2023
(+sc or −sc, depending on the enantiomer), anti butane is anti-periplanar, and eclipsed butane is syn-periplanar. Klyne, W & Prelog V. Description of steric...
2 KB (250 words) - 02:07, 7 December 2023
one from equatorial glycosides as long as the donating orbital is anti-periplanar to the accepting orbital. Three angles are described by φ, ψ and ω...
10 KB (1,156 words) - 18:55, 13 April 2024
pyranosides is unreactive. Hyperconjugation is involved when OH-4 is anti-periplanar to the ring oxygen, which can also reduce its reactivity. (Scheme 3)...
12 KB (1,375 words) - 13:21, 31 July 2024
Asymmetric induction (section Anti–Felkin selectivity)
stereochemistry arises due to hyperconjugative stabilization arising from the anti-periplanar interaction between the C-X antibonding σ* orbital and the forming...
29 KB (3,674 words) - 12:53, 12 May 2024
Stereochemistry (redirect from Periplanar)
clinal a torsion angle between 0° and 30° or 150° and 180° is called periplanar (p) a torsion angle between 0° to 30° is called synperiplanar or syn-...
13 KB (1,464 words) - 13:12, 18 June 2024
effect of anti-periplanar orientation is also visible in comparing glucopyranose and galactopyranose hydrolysis. Glucopyranose has an anti-perplanar orientation...
6 KB (800 words) - 11:33, 7 June 2022
Conformational isomerism (redirect from Syn-periplanar)
clinal (c) a torsion angle between 0° and ±30° or ±150° and 180° is called periplanar (p) a torsion angle between 0° and ±30° is called synperiplanar (sp),...
33 KB (3,846 words) - 18:11, 24 July 2024
clinal (c) and those between 0° and ±30° or ±150° and 180° are called periplanar (p). The two types of terms can be combined so as to define four ranges...
17 KB (2,498 words) - 00:31, 26 June 2024