Sulfonation of 1- and 2-naphthol and their methanesulfonate esters with sulfur trioxide. The influence of initial sulfation on the sulfo-product composition
作者:Harold R. W. Ansink、Erwin Zelvelder、Hans Cerfontain
DOI:10.1002/recl.19931120302
日期:——
The sulfonation of 1- and 2-naphthol with sulfurtrioxide in C2H3NO2 has been studied by using 1H NMR. 1-Naphthol (1) yields, upon reaction with 1.0 mol-equiv of SO3, a mixture of 2- and 4-sulfonic acids (2- and 4-S); upon increasing the reaction temperature, the relative amount of 2-S increases. Upon reaction with 4.0 mol-equiv of SO3, the initially observed products are the hydrogen sulfate 1-O,2
使用1 H NMR研究了1-萘酚和2-萘酚在C 2 H 3 NO 2中被三氧化硫磺化。1-萘酚(1)与1.0摩尔当量的SO 3反应,得到2-和4-磺酸(2-和4-S)的混合物。随着反应温度的升高,2-S的相对量增加。与4.0摩尔当量的SO 3反应后,最初观察到的产物是硫酸氢盐1 - O,2,4-S 3和一些相应的磺酸酐。在延长反应时间后,大约1 - O -4,7-S 3, 形成了。
[EN] BINDING DOMAIN MAPPING AND COMPOUNDS, COMPOSITIONS, COMPLEXES, METHODS, AND KITS RELATED THERETO<br/>[FR] CARTOGRAPHIE DE DOMAINES DE LIAISON, AINSI QUE COMPOSÉS, COMPOSITIONS, COMPLEXES, MÉTHODES ET KITS ASSOCIÉS À CELLE-CI
申请人:GEORGE MASON RES FOUNDATION INC
公开号:WO2020142700A1
公开(公告)日:2020-07-09
The present disclosure relates to compounds, complexes, compositions, kits and methods for determining interacting and/or binding sites between, e.g., proteins, proteins and nucleic acids, proteins and small molecules, or intrachain protein domains. The disclosure provides rapid and direct positive identification of the contact interface region between such molecules, and can be applied to individual interacting pairs, as well as large-scale or global interactions.