Synthetic Route of 99-14-9, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 99-14-9, Name is Propane-1,2,3-tricarboxylic acid, SMILES is O=C(O)CC(CC(O)=O)C(O)=O, belongs to Benzisoxazole compound. In a article, author is Katritzky, AR, introduce new discover of the category.
Structure elucidation of [1,3]oxazolo[4,5-e][2,1] benzisoxazole and naphtho[1,2-d][1,3]- and phenanthro[9,10-d]oxazoles using gradient selected gHMBC, gHMQC and gHMQC-TOCSY NMR techniques
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.
Synthetic Route of 99-14-9, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 99-14-9.
Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics