1623774-99-1Relevant articles and documents
MnCl2-Catalyzed C?H Alkylations with Alkyl Halides
Liu, Weiping,Cera, Gianpiero,Oliveira, Jo?o C. A.,Shen, Zhigao,Ackermann, Lutz
supporting information, p. 11524 - 11528 (2017/08/30)
C?H alkylations with challenging β-hydrogen-containing alkyl halides were accomplished with sustainable MnCl2 as the catalyst under phosphine-ligand-free conditions. The proximity-induced benzamide C?H activation occurred with ample substrate s
Expedient Iron-Catalyzed C-H Allylation/Alkylation by Triazole Assistance with Ample Scope
Cera, Gianpiero,Haven, Tobias,Ackermann, Lutz
, p. 1484 - 1488 (2016/02/12)
Triazole assistance set the stage for a unified strategy for the iron-catalyzed C-H allylation of arenes, heteroarenes, and alkenes with ample scope. The versatile catalyst also proved competent for site-selective methylation, benzylation, and alkylation with challenging primary and secondary halides. Triazole-assisted C-H activation proceeded chemo-, site-, and diastereo-selectively, and the modular TAM directing group was readily removed in a traceless fashion under exceedingly mild reaction conditions. One for all: A unified strategy for iron-catalyzed C-H allylation and alkylation was developed by the use of a triazole directing group that could be cleaved under exceedingly mild conditions.
Iron-catalyzed C(sp2)-H and C(sp3)-H arylation by triazole assistance
Gu, Qing,Al Mamari, Hamad H.,Graczyk, Karolina,Diers, Emelyne,Ackermann, Lutz
, p. 3868 - 3871 (2014/05/06)
Modular 1,2,3-triazoles enabled iron-catalyzed C-H arylations with broad scope. The novel triazole-based bidentate auxiliary is easily accessible in a highly modular fashion and allowed for user-friendly iron-catalyzed C(sp 2)-H functionalizations of arenes and alkenes with excellent chemo- and diastereoselectivities. The versatile iron catalyst also proved applicable for challenging C(sp3)-H functionalizations, and proceeds by an organometallic mode of action. The triazole-assisted C-H activation strategy occurred under remarkably mild reaction conditions, and the auxiliary was easily removed in a traceless fashion. Intriguingly, the triazole group proved superior to previously used auxiliaries. With a little help: A versatile iron catalyst allows the arylation of C(sp2)-H and C(sp3)-H bonds in the presence of a modular and removable triazolyldimethylmethyl (TAM) auxiliary, whose structure can be varied through 1,3-dipolar azide-alkyne cycloadditions.