Light-mediated iodoperfluoroalkylation of alkenes/alkynes catalyzed by chloride ions: role of halogen bonding
作者:Redouane Beniazza、Lionel Remisse、Damien Jardel、Dominique Lastécouères、Jean-Marc Vincent
DOI:10.1039/c8cc02765j
日期:——
deoxygenated methanol solutions containing catalytic amounts of NaCl or Bu4NCl. Preliminary mechanistic studies indicate that the light-promoted homolytic cleavage of the Rf–I bond that initiates the reaction is facilitated by the halogenbonding interaction between RfI and chloride ions.
描述了用于烯烃/炔烃的碘全氟烷基化的创新方法。这些反应,包括烯烃的碘三氟甲基化,在低强度的UVA辐射下,在含有催化量的NaCl或Bu 4 NCl的脱氧甲醇溶液中,非常有效地进行。初步的机理研究表明,R f I和氯离子之间的卤素键相互作用促进了引发反应的R f -I键的光促进均裂。
Host (CdS)-guest (single-atomic Au) electron transfer mechanism for blue-LED-induced atom transfer radical addition of alkenes
作者:Xiao-Li Hao、Xiao-Shan Chu、Ke-Ling Luo、Wei Li
DOI:10.1016/j.jcat.2022.05.016
日期:2022.7
Atom transfer radical addition (ATRA) is commonly applied to introduce perfluoroalkyl groups into organic molecules, but it often suffers from harsh reaction condition, poor yield and expensive catalyst usage for practical application. Light-induced ATRA reaction is of great significance due to its merits of mild reaction condition and easy operation, but it is generally difficult to achieve high yield