A process for the rapid removal of dialkylamino-substituents from aromatic rings. Application to the expedient synthesis of (R)-tolterodine
摘要:
A range of N,N-dialkylanilines have been Successfully converted to the parent Substituted benzenes by a novel two-step pathway. The products are obtained in good yields and optical purity of adjacent stereocenters is maintained. This technology has been applied toward the synthesis of (R)-tolterodine. (C) 2009 Elsevier Ltd. All rights reserved.
Scalable, Metal- and Additive-Free, Photoinduced Borylation of Haloarenes and Quaternary Arylammonium Salts
作者:Adelphe M. Mfuh、John D. Doyle、Bhuwan Chhetri、Hadi D. Arman、Oleg V. Larionov
DOI:10.1021/jacs.6b01376
日期:2016.3.9
We report herein a simple, metal- and additive-free, photoinduced borylation of haloarenes, including electron-rich fluoroarenes, as well as arylammoniumsalts directly to boronic acids. This borylation method has a broad scope and functional group tolerance. We show that it can be further extended to boronic esters and carried out on gram scale as well as under flow conditions.
Ring-opening reactions. The reactivity of pyrrolidinium and piperidinium ions in solution
作者:Giorgio Cerichelli、Luciana Luchetti
DOI:10.1016/s0040-4020(01)81562-3
日期:1993.1
In this paper we report data on the reactivity of 1-phenyl-pyrrolidinium and -piperidinium iodides, and indolinium and tetrahydroquinolinium iodides, with MeO− in methanol and compare them with the corresponding 1,1-dimethylazoniacycloalkane iodides.