42186-06-1Relevant articles and documents
Rhenium(I)-Catalyzed C-Methylation of Ketones, Indoles, and Arylacetonitriles Using Methanol
Shee, Sujan,Kundu, Sabuj
, p. 6943 - 6951 (2021/05/29)
A ReCl(CO)5/MeC(CH2PPh2)3 (L2) system was developed for the C-methylation reactions utilizing methanol and base, following the borrowing hydrogen strategy. Diverse ketones, indoles, and arylacetonitriles underwent mono-and dimethylation selectively up to 99% yield. Remarkably, tandem multiple methylations were also achieved by employing this catalytic system.
α-Methylation of 2-Arylacetonitrile by a Trimethylamine-Borane/CO2 System
Zhang, Xiaowei,Wang, Sheng,Xi, Chanjuan
, p. 9744 - 9749 (2019/08/16)
A highly selective monomethylation of 2-arylacetonitrile using CO2 is described. The utilization of trimethylamine-borane facilitates the six-electron reduction of CO2. This reaction is the first selective six-electron reductive functionalization of CO2 faciliated by C(sp3)-H bonds. A variety of 2-arylpropionitrile was obtained in good yields. The reaction could also be applied at the gram scale.
Phenanthrene Synthesis by Palladium(II)-Catalyzed γ-C(sp2)-H Arylation, Cyclization, and Migration Tandem Reaction
Gou, Bo-Bo,Yang, Hui,Sun, Huai-Ri,Chen, Jie,Wu, Junliang,Zhou, Ling
supporting information, p. 80 - 84 (2019/01/11)
Phenanthrene is an important structural motif in chemistry and materials science, and many synthetic routes have been developed to construct its skeleton. However, synthesis of unsymmetric phenanthrenes remains a challenge. Here, an efficient one-pot tandem reaction for the preparation of phenanthrenes via sequential γ-C(sp2)-H arylation, cationic cyclization, dehydration, and 1,2-migration was developed. A wide range of symmetric and unsymmetric phenanthrenes with diversified functional groups were synthesized with good to excellent yields.