New research progress on 40052-13-9 in 2021. Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 40052-13-9, Name is 3-Tert-butoxy-3-oxopropanoic acid, SMILES is CC(C)(C)OC(=O)CC(O)=O, in an article , author is Katritzky, AR, once mentioned of 40052-13-9, Quality Control of 3-Tert-butoxy-3-oxopropanoic acid.
Structure elucidation of compounds in the benzisoxazole series (1-6) and naphtho[1,2-d][1,3] (7-10) and phenanthro[9,10-d][1,3]oxazole (11-14) series was accomplished using extensive 2D NMR spectroscopic studies including H-1-H-1 COSY, long-range H-1-H-1 COSY,H-1-C-13 COSY, gHMQC, gHMBC and gHMQC-TOCSY experiments. The distinction between oxazole and isoxazole rings was made on the basis of the magnitude of heteronuclear one-bond (1)J(C2,H2) (or (1)J(C3,H3)) coupling constants. Complete analysis of the H-1 NMR spectra of 11-14 was achieved by iterative calculations. Gradient selected gHMQC-TOCSY spectra of phenanthro[9,10-d][1,3]oxazoles 11-14 were obtained at different mixing times (12,24,36,48 and 80 ms) to identify the spin system where the protons of phenanthrene ring at H-5, H-6 and at H-9 and H-7 and H-8 were highly overlapping. Copyright (C) 2003 John Wiley Sons, Ltd.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 40052-13-9. Quality Control of 3-Tert-butoxy-3-oxopropanoic acid.
Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics