Li, Qianqian; Huo, Suhong; Meng, Lingpeng; Li, Xiaoyan published an article in 2022. The article was titled 《Mechanism and origin of the stereoselectivity of manganese-catalyzed hydrosilylation of alkynes: a DFT study》, and you may find the article in Catalysis Science & Technology.Recommanded Product: Bromopentacarbonylmanganese(I) The information in the text is summarized as follows:
The manganese-catalyzed hydrosilylation reaction provides a powerful platform to synthesize organosilicon compounds due to their rich reserves, low toxicity, and promising novel reactivity. In this work, the detailed mechanisms of the manganese-catalyzed hydrosilylation of alkynes using the mononuclear Mn(CO)5Br and binuclear Mn2(CO)10 have been systematically investigated and compared by DFT calculations The mononuclear Mn(CO)5Br-catalyzed hydrosilylation of alkynes belongs to an organometallic mechanism. The computational results indicate that the proposed organometallic catalytic cycle in the early literature cannot completely explain the exptl. results due to the high energy barrier involved. A novel catalytic mechanism, in which the CO firstly dissociates from Mn(CO)4BrL, provides an explanation to the studied reaction. E-pro is the main product of the mononuclear Mn(CO)5Br-catalyzed hydrosilylation of alkynes. Meanwhile, the Mn2(CO)10-catalyzed cycle occurs via radical mechanism, and Z-pro is obtained due to the steric effect. In both mononuclear Mn(CO)5Br and binuclear Mn2(CO)10-catalyzed cycles, the substituted alkyne addition process is the rate-determining step. Our calculated results provide deep insight into and amend the mechanistic details for the significant manganese-catalyzed hydrosilylation of alkyne, which is expected to be informative for the effective utilization of Mn catalysts and stereoselective control of alkyne functionalization reactions. In addition to this study using Bromopentacarbonylmanganese(I), there are many other studies that have used Bromopentacarbonylmanganese(I)(cas: 14516-54-2Recommanded Product: Bromopentacarbonylmanganese(I)) was used in this study.
Bromopentacarbonylmanganese(I)(cas: 14516-54-2) has many other uses. It is used in the formation of (eta6-arene)tricarbonylmanganese(I) by reacting with arene (arene= hexamethyl benzene, 1,2,4,5-tetramethyl benzene, mesitylene, p-xylene and toluene) in the presence silver salt.Recommanded Product: Bromopentacarbonylmanganese(I)
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary