New Advances in Chemical Research in 2021. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction by binding to a specific portion of an enzyme and thus slowing or preventing a reaction from occurring. 3458-28-4, Name is (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal, SMILES is O=C[C@H]([C@H]([C@@H]([C@@H](CO)O)O)O)O, in an article , author is Moon, S, once mentioned of 3458-28-4, Application In Synthesis of (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal.
The conformation of 1,3-benzodioxole has been examined using ab initio calculation and natural bond orbital (NBO) analysis in order to find the origin of its unusual nonplanarity. Geometry optimizations for the planar (C-2v) and flap-puckered (C-s) conformers of 1,3-benzodioxole have been performed at the HF, B3LYP, and MP2 levels, and the results indicate that the flap-puckerd conformer is more stable than the planar conformer. High-level electron correlation treatments with extended-basis sets have also been performed to provide a reliable prediction of the puckering barrier for 1,3-benzodioxole. The calculated puckering barrier appears to be in reasonable agreement with the experiment, but the divergent behavior of the Moller-Plesset series suggests that it is impossible with conventional basis sets smaller than 400 functions to converge the barrier height. NBO analysis of the Hartree-Fock wave functions shows that the conformational preference of the C-s conformer over the C-2v is the result of a wide variety of hyperconjugative orbital interactions, but the interaction between the oxygen lone pair (n(p)) and the o*(CO) orbital, which is closely associated with the anomeric effect, is the most important factor favoring the nonplanar conformation. However, 1,3-benzodioxole has a lower puckering barrier to planarity than 1,3-dioxole due to the suppression of the anomeric effect by the benzene ring.
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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem