2-(2-异氰基苯基)-1 H-吲哚是一类同时具有芳族CH和吲哚N-H官能度的官能化异氰化物,首先用于选择性的酰亚胺化环化反应中。通过捕获亚氨基自由基或亚氨基钯选择性地获得具有生物重要性的6-芳基11 H-吲哚并[3,2- c ]喹啉和6-芳基吲哚并[1,2- c ]喹唑啉的支架。通过CH键和NH键的中间体。
Novel convenient one-pot method for the synthesis of indoloquinolines
作者:N. A. Aksenov、A. Z. Gasanova、G. M. Abakarov、I. V. Aksenova、A. V. Aksenov
DOI:10.1007/s11172-019-2493-4
日期:2019.4
A novel one-pot method based on the sequence of the Fisher reaction between nitroacetophenone and phenylhydrazines, the reduction with metallic tin directly in polyphosphoric acid, and acylation has been developed for the synthesis of indoloquinolines. The obtained indolo-[3,2-c]quinolines are precursors of the analogs of isocryptolepine alkaloid.
Enantioselective Chlorocyclization of Indole Derived Benzamides for the Synthesis of Spiro-indolines
作者:Qin Yin、Shu-Li You
DOI:10.1021/ol4020943
日期:2013.8.16
(DHQD)(2)PHAL catalyzed enantioselective chlorocyclization of indole derived benzamides was realized. Spiro-indolines containing a continuous quaternary carbon center and tertiary carbon center were obtained in good yields with excellent enantioselectivity (up to 90% yield and 96% ee).
Palladium-catalyzed carbonylative synthesis of indoloisoindoloquinazolinone derivatives by using CO as a carbonyl source
作者:Shenghai Guo、Fang Wang、Yangfan Liu、Xuesen Fan
DOI:10.1016/j.tet.2019.04.070
日期:2019.6
efficient synthesis of indolo[1,2-c]isoindolo[2,1-a]quinazolin-5(16aH)-one derivatives through palladium-catalyzed cyclocarbonylation reaction of 6-(2-bromoaryl)-5,6-dihydroindolo[1,2-c]quinazolines with the use of CO as a carbonyl source under atmospheric pressure has been disclosed. More intriguingly, the above-mentioned products can also be obtained directly from a one-pot two-step tandemreaction of
通过6-(2-溴芳基)-5,6-二氢吲哚的钯催化环羰基化反应有效合成吲哚[1,2- c ]异吲哚并[ 2,1- a ]喹唑啉-5(16a H)-一衍生物已经公开了在大气压下使用CO作为羰基源的[1,2- c ]喹唑啉。更有趣的是,上述产物也可以直接从2-(1H-吲哚-2-基)苯胺和2-溴苯甲醛的2-锅(1H)两步串联反应制得,所述2-(1H-吲哚-2-基)苯胺是6-(-)的前体。 (2-溴芳基)-5,6-二氢吲哚并[1,2- c ]喹唑啉,在大气压CO压力下以中等收率收率。
Catalyst-Dependent Selectivity in the Relay Catalytic Branching Cascade
作者:Avinash H. Bansode、Aslam C. Shaikh、Rahul D. Kavthe、Shridhar Thorat、Rajesh G. Gonnade、Nitin T. Patil
DOI:10.1002/chem.201405736
日期:2015.2.2
One of the best ways to access collections of small molecules is to use various techniques in diversity‐oriented synthesis (DOS). Recently, a new form of DOS, namely “relaycatalyticbranchingcascades” (RCBCs), has been introduced, wherein a common type of starting material reacts with several scaffold‐building agents (SBAs) to obtain structurally diversemolecularscaffolds under the influence of
Pt(IV)-Catalyzed Hydroamination Triggered Cyclization: A Strategy to Fused Pyrrolo[1,2-<i>a</i>]quinoxalines, Indolo[1,2-<i>a</i>]quinoxalines, and Indolo[3,2-<i>c</i>]quinolines
作者:Nitin T. Patil、Rahul D. Kavthe、Valmik S. Shinde、Balasubramanian Sridhar
DOI:10.1021/jo100373w
日期:2010.5.21
A PtCl4-catalyzed hydroamination-triggered cyclization strategy to access biologically interesting N-containing heterocycles such as pyrrolo[1,2-a]quinoxalines, indolo[1,2-a]quinoxalines, and indolo[3,2-c]quinolines is described. The reaction makes use of aminoaromatics such as 1-(2-aminophenyl)pyrroles, N-(2-aminophenyl)indoles, 2-(2-aminophenyl)indoles, and alkynes having a tethered hydroxyl group
一种PtCl 4催化的加氢胺触发的环化策略,以获取生物学上有趣的含N杂环,如吡咯并[1,2- a ]喹喔啉,吲哚[1,2- a ]喹喔啉和吲哚[3,2- c ]喹啉描述。该反应利用氨基芳族化合物,例如1-(2-氨基苯基)吲哚,N-(2-氨基苯基)吲哚,2-(2-氨基苯基)吲哚和具有束缚羟基的炔烃。从机理上讲,该反应非常吸引人,因为它涉及由单一金属催化剂PtCl 4催化的多个催化循环。当反应在微波辅助条件下进行时,我们观察到了速率的显着提高。