Bi(OTf) 3 -mediated intramolecular hydroamination of 2-aminostilbenes for the synthesis of 2-arylindolines
作者:So Won Youn、Su San Jang、So Ra Lee
DOI:10.1016/j.tet.2016.06.063
日期:2016.8
An efficient Bi(OTf)(3)-mediated intramolecular hydroamination of 2-aminostilbenes for the synthesis of various 2-arylindolines has been developed. Various advantages using Bi(OTf)(3) as a catalyst, such as the operationally easy, simple, and safe procedure, good to excellent chemical yields, and the use of relatively low catalyst loading are noteworthy. (C) 2016 Elsevier Ltd. All rights reserved.
Heptadecafluorooctanesulfonic acid (C8F17SO3H) catalyzed intramolecular hydroamination of olefinic sulfonamides in fluorous biphase system (FBS)
作者:Yan Yin、Gang Zhao
DOI:10.1016/j.jfluchem.2006.09.012
日期:2007.1
A practical, efficient, and environmentally benign intramolecular hydroamination of olefinic sulfonamides was carried out in fluorous biphase system (FBS) using commercially available heptadecafluorooctanesulfonic acid (C8F17SO3H) as a catalyst and perfluorodecaline (C10F18, cis- and trans- mixture) as a fluorous solvent to produce the corresponding cyclic products in good yields. The Bronsted acid of C8F17SO3H is easily recovered and recycled at least five times. (c) 2006 Elsevier B.V. All rights reserved.
Synthesis of Indolines and Quinoline via Cyclization of N-Arylsulfonyl-2-allylanilines Catalyzed by Brønsted Acid