Three-Component Reaction of <i>N</i>′-(2-Alkynylbenzylidene)hydrazide, Alkyne, with Sulfonyl Azide via a Multicatalytic Process: A Novel and Concise Approach to 2-Amino-<i>H</i>-pyrazolo[5,1-<i>a</i>]isoquinolines
作者:Shaoyu Li、Yong Luo、Jie Wu
DOI:10.1021/ol201653j
日期:2011.8.19
A novel and efficient route for the synthesis of 2-amino-H-pyrazolo[5,1-a]isoquinolines via a three-componentreaction of N′-(2-alkynylbenzylidene)hydrazide, alkyne, and sulfonyl azide is described. This transformation, co-catalyzed by silver triflate and copper(I) bromide under mild conditions, proceeds efficiently to generate the 2-amino-H-pyrazolo[5,1-a]isoquinolines in good to excellent yields
Aryne [3 + 2] cycloaddition with N-sulfonylpyridinium imides and in situ generated N-sulfonylisoquinolinium imides: a potential route to pyrido[1,2-b]indazoles and indazolo[3,2-a]isoquinolines
作者:Jingjing Zhao、Pan Li、Chunrui Wu、Hongli Chen、Wenying Ai、Renhong Sun、Hailong Ren、Richard C. Larock、Feng Shi
DOI:10.1039/c2ob06611d
日期:——
The aryne [3 + 2] cycloaddition process with pyridinium imides breaks the aromaticity of the pyridine ring. By equipping the imide nitrogen with a sulfonyl group, the intermediate readily eliminates a sulfinate anion to restore the aromaticity, leading to the formation of pyrido[1,2-b]indazoles. The scope and limitation of this reaction are discussed. As an extension of this chemistry, N-tosylisoquinolinium
与吡啶鎓酰亚胺的芳烃[3 + 2]环加成过程破坏了吡啶环的芳香性。通过在酰亚胺氮上加成磺酰基,该中间体容易消除亚磺酸根阴离子以恢复芳香性,从而导致吡啶并[1,2- b ]吲唑的形成。讨论了该反应的范围和局限性。作为该化学反应的扩展,通过AgOTf催化的6-endo-dig亲电环化反应从N '-(2-炔基亚苄基)-甲苯磺酰肼原位生成的N-甲苯磺酰异喹啉鎓亚胺易于进行芳烃[3 + 2]环加成反应而制得吲哚唑[3,2- a同一锅中的]-异喹啉,为这些潜在的抗癌药提供了高效途径。
Synthesis of organoselenyl isoquinolinium imides <i>via</i> iron(<scp>iii</scp>) chloride-mediated tandem cyclization/selenation of <i>N</i>′-(2-alkynylbenzylidene)hydrazides and diselenides
作者:Hai-Feng Yao、Dian-Liang Wang、Fang-Hui Li、Bing Wu、Zhong-Jian Cai、Shun-Jun Ji
DOI:10.1039/d0ob01517b
日期:——
This report describes the synthesis of organoselenyl isoquinolinium imides through a tandemcyclization between N′-(2-alkynylbenzylidene)hydrazides and diselenides. The reaction was carried out at room temperature under an ambient atmosphere using cheap iron(III) chloride as the metallic source. The strategy shows good tolerance to a broad range of N′-(2-alkynylbenzylidene)hydrazides and diselenides
本报告描述了通过N '-(2-炔基亚苄基) 酰肼和二硒化物之间的串联环化合成有机硒基异喹啉酰亚胺。该反应在室温和环境气氛下使用廉价的氯化铁 ( III ) 作为金属源进行。该策略对广泛的N '-(2-炔基亚苄基) 酰肼和二硒化合物具有良好的耐受性,并在一步中形成 C-N 和 C-Se 键。所得产物通过银催化的[3+2]环加成反应很容易进一步转化为具有生物活性的H-吡唑并[5,1- a ]异喹啉骨架。
HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
申请人:HEESUNG MATERIAL LTD.
公开号:US20200308150A1
公开(公告)日:2020-10-01
The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.