据报道,内部的烯基硼酸酯可以通过连续的铜催化的叠氮化/氮杂-维蒂希缩合反应,由相应的1,2-双(硼酸酯)轻松制备,从而可以高效,直接地合成异喹啉。该合成方法已用于合成奎尼卡因,奎尼卡因是一种用于治疗疼痛和瘙痒的局部麻醉剂,并在第一步中通过使用2-噻吩甲醛作为偶联伙伴进一步扩展为噻吩并[2,3- c ]吡啶。
One, two, three, four: A copper(I)–phosphine complex catalyzes the diborylation of alkynes and arynes, and the tri‐ or tetraborylation of propargyl ethers (see scheme; pin=pinacolato). In the latter cases, the CO bond(s) as well as the CC bond are borylated in one pot. Furthermore, a diborylation product serves as an intermediate in the efficient synthesis of ortho‐terphenyls with pharmacological
1<i>H-</i>Phosphindoles as Structural Units in the Synthesis of Chiral Helicenes
作者:Keihann Yavari、Souad Moussa、Béchir Ben Hassine、Pascal Retailleau、Arnaud Voituriez、Angela Marinetti
DOI:10.1002/anie.201202024
日期:2012.7.2
Building helicenes: A photochemical cyclization approach affords helicenes in which the fused ring sequence ends with a phosphole unit (see scheme). The stereogenic phosphorus centers of the substrates control the screw sense of helical chirality. The terminal phosphole units undergo photochemical [2+2] annulations to give dimeric helical structures.
Synthesis and Photophysical Properties of Benzo[c]phenanthrene
Derivatives
作者:Amira K. Hajri、Marzough A. Albalawi、Souad A. Moussa、Faouzi Aloui
DOI:10.2174/1570178618666211102095007
日期:2022.2
derived from benzo[c]phenanthrene have beensynthesized through a one-step procedure involving palladium Suzuki coupling and are characterizedby 1H and 13C NMR, MS and HRMS spectroscopies. UV-vis absorption and fluorescenceproperties of these π-conjugated compounds have been evaluated in solutions and strong emissionin the blue region of the visible spectrum was noted. The optical spectra of these small
作者:Aziz, Sk Md Tarik、Nagarajan, Shalini、Sridhar, Balasubramanian、Ghosh, Subhash、Berrée, Fabienne
DOI:10.1021/acs.joc.4c00526
日期:——
copper-catalyzed method for the synthesis of tetrazolo[5,1-a]isoquinolines has been developed starting from alkenyl-1,2-bis(boronates). The domino reaction underwent a Suzuki-Miyaura cross-coupling reaction and an azidation followed by an in situ [3 + 2] cycloaddition. Regioselective synthesis has been demonstrated by inverting the Suzuki-Miyaura cross-coupling reaction and the azidation.
开发了一种以烯基-1,2-双(硼酸酯)为原料合成四唑并[5,1- a ]异喹啉的有效铜催化方法。多米诺骨牌反应经历了铃木-宫浦交叉偶联反应和叠氮化反应,然后进行原位[3 + 2]环加成反应。区域选择性合成已通过反转 Suzuki-Miyaura 交叉偶联反应和叠氮化反应得到证实。
Synthesis of Polysubstituted Isoquinolines and Related Fused Pyridines from Alkenyl Boronic Esters via a Copper-Catalyzed Azidation/Aza-Wittig Condensation Sequence
作者:Vankudoth Jayaram、Tailor Sridhar、Gangavaram V. M. Sharma、Fabienne Berrée、Bertrand Carboni
DOI:10.1021/acs.joc.7b02831
日期:2018.1.19
An efficient and straightforward synthesis of isoquinolines is reported from internal alkenyl boronic esters, easily prepared from the corresponding 1,2-bis(boronates), via a sequential copper-catalyzed azidation/aza-Wittig condensation. This synthetic method has been used to synthesize quinisocaine, a topical anesthetic used for the treatment of pain and pruritus, and further extended to thieno[2
据报道,内部的烯基硼酸酯可以通过连续的铜催化的叠氮化/氮杂-维蒂希缩合反应,由相应的1,2-双(硼酸酯)轻松制备,从而可以高效,直接地合成异喹啉。该合成方法已用于合成奎尼卡因,奎尼卡因是一种用于治疗疼痛和瘙痒的局部麻醉剂,并在第一步中通过使用2-噻吩甲醛作为偶联伙伴进一步扩展为噻吩并[2,3- c ]吡啶。