Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 35000-38-5, Name is tert-Butyl 2-(triphenylphosphoranylidene)acetate, molecular formula is C24H25O2P, belongs to Isoxazoles compound. In a document, author is Vieira, Andre A., introduce the new discover, COA of Formula: C24H25O2P.
1,3-Dipolar cycloaddition reaction applied to synthesis of new unsymmetric liquid crystal compounds-based isoxazole
In this study, a regioselective, simple and versatile copper(I)-catalyzed procedure for preparation of a series of liquid crystals based on unsymmetrical 3,5-disubstituted isoxazole was developed. Using different substituted chloro oximes and phenyl acetylenes, 1,3-dipolar cycloaddition reaction was carried out. A second series containing the isoxazole ring and a triple bond in the rigid core was also synthesized. From the 3-(4-bromopheiiyl)-5-(4-(decyloxy)phenyl)isoxazole, new liquid-crystalline compounds were prepared by Sonogashira cross-coupling. All of the derivates of the isoxazole ring compounds exhibited mesomorphism. Smectic C, smectic A, and nematic phases were observed by optical microscopy and DSC analysis. The yield of these reactions varied from moderate to excellent (47-93%). The structure of the rigid core was investigated by single crystal X-ray diffraction, which confirmed the regioselectivity of the [3+2] dipolar cycloaddition reaction. (C) 2008 Elsevier Ltd. All rights reserved.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 35000-38-5. COA of Formula: C24H25O2P.
Reference:
Isoxazole – Wikipedia,
,Isoxazole | C3H3NO – PubChem