Pyridine-catalyzed desulfonative borylation of benzyl sulfones
作者:Yuuki Maekawa、Zachary T. Ariki、Masakazu Nambo、Cathleen M. Crudden
DOI:10.1039/c9ob01099h
日期:——
pyridine-catalyzed desulfonative borylation of benzyl sulfones with bis(pinacolato)diboron (B2pin2). A variety of benzhydryl- and benzyl boronic esters could be synthesized from readily prepared sulfone derivatives. The borylation of cyclic sulfones accompanied by ringopening also proceeded to afford the corresponding sulfonate, which could be converted into functionalized sulfones and sulfonamides.
synthesis of gem-bisborylalkanes and diarylmethyl boronates via cobalt-catalyzed deoxygenative borylation of diaryl ketones. This borylation protocol is compatible with a broad range of functionalized aryl groups, providing access to a wide array of boronic esters. The resulting boronic esters can be further transformed to various cross-coupling products and TPEs that represent important structural motifs
偕二硼酸酯和二芳基甲基硼酸酯是合成化学中的多功能构件。我们在这里报道了一种高效合成gem-双硼烷和二芳基甲基硼酸酯via< a i=5> 钴催化的二芳基酮的脱氧硼化反应酮。该硼基化方案与多种官能化芳基兼容,可提供多种硼酸酯。由此产生的硼酸酯可以进一步转化为各种交叉偶联产品和 TPE,它们代表了有机化学和材料科学中的重要结构主题。