18450-24-3Relevant articles and documents
Novel Indole-Quinazolinone Based Amides as Cytotoxic Agents
Gokhale, Nikhila,Panathur, Naveen,Dalimba, Udayakumar,Nayak, Pawan G.,Pai, K. Sreedhar Ranganath
, p. 513 - 524 (2016)
Indole-quinazolinone hybrids with active amides were synthesized, characterized, and assessed for their cytotoxicity. Two molecules displayed substantial activity in sulphorhodamine B assay method.
Asymmetric Transfer Hydrogenation of α-Substituted-β-Keto Carbonitriles via Dynamic Kinetic Resolution
Wang, Fangyuan,Yang, Tilong,Wu, Ting,Zheng, Long-Sheng,Yin, Congcong,Shi, Yongjie,Ye, Xiang-Yu,Chen, Gen-Qiang,Zhang, Xumu
supporting information, p. 2477 - 2483 (2021/02/16)
A catalytic protocol for the enantio- and diastereoselective reduction of α-substituted-β-keto carbonitriles is described. The reaction involves a DKR-ATH process with the simultaneous construction of β-hydroxy carbonitrile scaffolds with two contiguous stereogenic centers. A wide range of α-substituted-β-keto carbonitriles were obtained in high yields (94%-98%) and excellent enantio- and diastereoselectivities (up to >99% ee, up to >99:1 dr). The origin of the diastereoselectivity was also rationalized by DFT calculations. Furthermore, this methodology offers rapid access to the pharmaceutical intermediates of Ipenoxazone and Tapentadol.
Friedel-Crafts Chemistry. Part 53. Divergent and Diversity-Oriented Synthesis of Condensed Indole Scaffolds via Friedel-Crafts Ring Closure Approach
Abd El-Aal, Hassan A. K.,Khalaf, Ali A.
, p. 276 - 287 (2019/01/30)
A series of indole-fused medium-sized N-heterocyclic systems 10a-h were prepared from laboratory-synthesized indole-based esters 9a-h via intramolecular Friedel-Crafts cyclizations induced by both trifluoromethanesulfonic acid and AlCl3/CH
Facile synthesis of indolelactones using Mn(III)-based oxidative substitution-cyclization reaction
Inoue, Takeshi,Nishino, Hiroshi
, p. 431 - 450 (2019/07/31)
Based on the oxidation of indole with Mn(OAc)3 in the presence of 1,1-diarylethenes affording 3-vinyl-substituted indoles, a similar oxidation using indole-2-carboxylic acids was evaluated in order to effectively introduce the substituent group to the C-3 position of the indolecarboxylic acids. The coupling reaction followed by oxidative cyclization smoothly proceeded at room temperature in an AcOH-HCO2H mixed solvent to give the desired indolelactones in high yields. The reaction details, the structure determination of the products and a brief reaction mechanism are described.