248602-19-9Relevant articles and documents
Pd-Catalyzed Dearomatization of Indole Derivatives via Intermolecular Heck Reactions?
Yang, Ping,Xu, Ren-Qi,Zheng, Chao,You, Shu-Li
supporting information, p. 235 - 241 (2020/01/28)
Pd-catalyzed intermolecular dearomative Heck reaction of indoles with aryl iodides is described. The challenges on both reactivity and regioselectivity are addressed by the judicious regulation of the geometric and electronic properties of the substrates. An array of indoline derivatives bearing C2-quaternary center is obtained in good to excellent yields (up to 93%) with exclusive regioselectivity under operationally simple conditions. The mechanistic proposal is supported by detailed DFT calculations.
Unambiguous characterisation of dienylimines as intermediates in Fischer indolisation of o-substituted N-trifluoroacetyl enehydrazines
Miyata, Okiko,Kimura, Yasuo,Naito, Takeaki
, p. 2429 - 2430 (2007/10/03)
Thermal cyclisation of o-substituted N-trifluoroacetyl enehydrazines was systematically investigated and found to proceed via dienylimine intermediates, which were unambiguously characterised by X-ray and spectral analysis.