Rapid and efficient thiocyanation of phenols, indoles, and anilines in 1,1,1,3,3,3-hexafluoro-2-propanol under ultrasound irradiation
作者:Zhonghao Wang、Liang Wang、Qun Chen、Ming-yang He
DOI:10.1080/00397911.2017.1390139
日期:2018.1.2
ABSTRACT An efficient ultrasound-promoted thiocyanation of phenols, indoles, and anilines in the presence of N-chlorosuccinimide and NH4SCN using 1,1,1,3,3,3-hexafluoro-2-propanol as the solvent has been developed. The major features of the present protocol include the mild reaction conditions, short reaction times, good to excellent yields, and broad substrate scope. Moreover, scale-up synthesis can
Metal-Free Hydroamination of Alkynes: A Mild and Concise Synthesis of Thiazolo[3,2-a]indoles and their Cytotoxic Activity
作者:Spencer Short、Steven Rhodes、Vishakha S. Bhave、Ryoga Hojo、Mukund Jha
DOI:10.1055/s-0039-1690680
日期:2019.11
Abstract A metal-free, mild and efficient method for the synthesis of thiazolo[3,2-a]indoles has been developed starting from indoline-2-thiones. The reaction methodology involves first the formation of thermally labile 2-(prop-2-ynylthio)-1H-indole intermediates, which undergo base-mediated intramolecular hydroamination to produce the title compounds in excellent yields. A metal-free, mild and efficient method
抽象的 从二氢吲哚-2-硫酮开始,开发了一种无金属,温和有效的合成噻唑并[3,2- a ]吲哚的方法。该反应方法首先涉及热不稳定的2-(丙-2-炔硫基)-1 H-吲哚中间体的形成,该中间体经过碱介导的分子内氢化胺化反应以优异的产率生产标题化合物。 从二氢吲哚-2-硫酮开始,开发了一种无金属,温和有效的合成噻唑并[3,2- a ]吲哚的方法。该反应方法首先涉及热不稳定的2-(丙-2-炔硫基)-1 H-吲哚中间体的形成,该中间体经过碱介导的分子内氢化胺化反应以优异的产率生产标题化合物。
Oxindole derivatives
申请人:——
公开号:US20030225090A1
公开(公告)日:2003-12-04
The present invention is related to oxindole derivatives, compositions containing the same, and methods of use and manufacture of the same. Such compounds generally are useful pharmacologically as agents in those disease states alleviated by the alteration of mitogen activated signaling pathways in general, and in particular in the inhibition or antagonism of protein kinases, which pathologically involve aberrant cellular proliferation. Such disease states include tumor growth, restenosis, atherosclerosis, pain and thrombosis. In particular, the present invention relates to a series of substituted oxindole compounds, which exhibit Trk family protein tyrosine kinase inhibition, and which are useful in cancer therapy and chronic pain indications.
Synthesis of indole and indolenine derivatives starting from indoline-2-thiones
作者:Takehiko Nishio、Osamu Saku、Hiroshi Yamamoto
DOI:10.1002/jhet.5570380115
日期:2001.1
Indoline-2-thiones 1a-b,d,f,h, which have at least one hydrogen at the 3-position reacted with α-halo ester 2a-d, α-halo ketones 2e-f, and a-bromoacetonitrile 2g to give 2-alkylthioindole derivatives 3–11. In a similar manner treatment of 3,3-disubstituted indoline-2-thiones 1c,e with α-halo esters 2a,c,d and α-halo ketone 2e gave 2-alkylthioindolenines 12–16. Treatment of 1,3,3- trisubstituted indoline-2-thiones
An aniline is converted to a 3-lower hydrocarbonthiooxindole by processes already known in the art, the product converted to a 3-halo-3-lower hydrocarbonthiooxindole by oxidative halogenation, and the product subjected to hydrolysis to form the desired isatins.