Iron Porphyrin Catalyzed Insertion Reaction of <i>N</i>-Tosylhydrazone-Derived Carbenes into X–H (X = Si, Sn, Ge) Bonds
作者:En-Hui Wang、Yuan-Ji Ping、Zong-Rui Li、Hongling Qin、Zhen-Jiang Xu、Chi-Ming Che
DOI:10.1021/acs.orglett.8b01931
日期:2018.8.3
An efficient Fe(TPP)Cl catalyzed insertionreaction of in situ generated benzylic carbenes from N-tosylhydrazones into X–H (X = Si, Sn, Ge) was developed. Silanes bearing tertiary, secondary, and primary (3°, 2°, and 1°) Si–H bonds all reacted well to afford insertion products in moderate to high yields (up to 97%), and the reaction time could be significantly shortened to 1 h under microwave irradiation
A stable Copper-Modified silica microsphere catalyst for the synthesis of N-substituted carbazoles and organosilanes
作者:Haodong Xie、Qian Ma、Yuzhi Wang、Yiming Sun、Jonathan B. Baell、Fei Huang、Yang Yu
DOI:10.1016/j.jcat.2024.115294
日期:2024.1
various transformations and are applied broadly in the synthesis of complex molecules and drug. Typically, such transformations require expensive metal and complex ligands, leading to a vigorous reaction system and trace metal residues. Herein, we report copper-modified silica microspheres (SM-b) as heterogeneous catalyst in the insertionreaction of diazo compounds with carbazole and silanes. Under