5292-47-7Relevant academic research and scientific papers
Defect Engineering into Metal-Organic Frameworks for the Rapid and Sequential Installation of Functionalities
Park, Hyojin,Kim, Seongwoo,Jung, Byunghyuck,Park, Myung Hwan,Kim, Youngjo,Kim, Min
, p. 1040 - 1047 (2018/02/14)
Postsynthetic treatments are well-known and important functionalization tools of metal-organic frameworks (MOFs). Herein, we have developed a practical and rapid postsynthetic ligand exchange (PSE) strategy using a defect-controlled MOF. An increase in the number of defects amounts to MOFs with enhanced rates of ligand exchange in a shorter time frame. An almost quantitative exchange was achieved by using the most defective MOFs. This PSE strategy is a straightforward method to introduce a functionality into MOFs including bulky or catalytically relevant moieties. Furthermore, some mechanistic insights into PSE were revealed, allowing for a sequential ligand exchange and the development of multifunctional MOFs with controlled ligand ratios.
Chemoselectivity of cobalt-catalysed carbonylation-A reliable platform for the synthesis of fluorinated benzoic acids
Boyarskiy, Vadim P.,Fonari, Marina S.,Khaybulova, Tatiana S.,Gdaniec, Maria,Simonov, Yurii A.
experimental part, p. 81 - 85 (2010/03/04)
The cobalt-catalysed methoxycarbonylation of polysubstituted bromo,fluoro- and chloro,fluorobenzenes and 1,2,4-trichlorobenzene with emphasis on the chemo- and regio-selectivity of the reaction is described. The structures of isolated products of 1,4-dichloro-2-fluorobenzene carbonylation were determined by single-crystal X-ray diffraction. The fact that the fluorine substituents in the studied compounds remain intact indicates in favor of the anion-radical activation of aryl halides by a cobalt catalyst. For the first time, a universal method of preparation of the various fluorobenzoic acid derivatives from available raw materials with a good yield has been elaborated.
