Lyle, Steven J.’s team published research in Journal of the American Chemical Society in 141 | CAS: 25240-59-9

Journal of the American Chemical Society published new progress about 25240-59-9. 25240-59-9 belongs to alcohols-buliding-blocks, auxiliary class Boronic acid and ester,Boronic Acids,Boronate Esters, name is 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol, and the molecular formula is C6H13BO3, COA of Formula: C6H13BO3.

Lyle, Steven J. published the artcileMultistep Solid-State Organic Synthesis of Carbamate-Linked Covalent Organic Frameworks, COA of Formula: C6H13BO3, the publication is Journal of the American Chemical Society (2019), 141(28), 11253-11258, database is CAplus and MEDLINE.

Herein, we demonstrate the first example of a multi-step solid-state organic synthesis, in which a new imine-linked two-dimensional covalent organic framework (COF-170, 1) was transformed through three consecutive postsynthetic modifications into porous, crystalline cyclic carbamate and thiocarbamate-linked frameworks. These linkages are previously unreported and inaccessible through de novo synthesis. While not altering the overall connectivity of the framework, these chem. transformations induce significant conformational and structural changes at each step, highlighting the key importance of noncovalent interactions and conformational flexibility to COF crystallinity and porosity. These transformations were assessed using 15N multi-CP-MAS NMR spectroscopy, providing the first quantitation of yields in COF postsynthetic modification reactions, as well as of amine defect sites in imine-linked COFs. This multi-step COF linkage postsynthetic modification represents a significant step toward bringing the precision of organic solution-phase synthesis to extended solid-state compounds

Journal of the American Chemical Society published new progress about 25240-59-9. 25240-59-9 belongs to alcohols-buliding-blocks, auxiliary class Boronic acid and ester,Boronic Acids,Boronate Esters, name is 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol, and the molecular formula is C6H13BO3, COA of Formula: C6H13BO3.

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