Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 585-88-6, Name is Maltitol, SMILES is OC[C@H](O)[C@@H](O)[C@H](O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1)[C@H](O)CO, belongs to Tetrahydropyrans compound. In a document, author is Gaddam, Janardhan, introduce the new discover, Quality Control of Maltitol.
Total Synthesis and Structural Revision of Greensporone F and Dechlorogreensporone F
The first asymmetric total syntheses of the real isolation product (2S,5R,8R)-greensporone F and (2S,5R,8R)-dechlorogreensporone F, 14-membered resorcylic acid lactones with a cis-2,5-disubstituted tetrahydrofuran ring system, was accomplished. The synthesis features a late-stage Lewis acid-catalyzed stereoselective intramolecular oxa-Michael reaction, E-selective ring-closing metathesis, De Brabander’s esterification, and Jacobsen’s hydrolytic kinetic resolution as the key steps. Synthesis of both real isolation and erroneously proposed structure necessitated the revision of the absolute configuration of greensporone F and dechlorogreensporone F. The erroneous representation of (2S,5S,8S)-configuration in greensporone F and dechlorogreensporone F was assigned to be (2S,5R,8R) by comparison with the NMR data and specific rotation of the synthetic compounds with that of the reported data.Y
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 585-88-6 is helpful to your research. Quality Control of Maltitol.
Reference:
Tetrahydropyran – Wikipedia,
,Tetrahydropyran – an overview | ScienceDirect Topics