已公开了一种手性N,N'-二氧化物/钴(II)配合物,催化高度非对映选择性和对映选择性的串联氮杂-Piancatelli重排/分子内狄尔斯-阿尔德反应。从各种现成的2-呋喃基甲醇和N-(呋喃-2)中,以良好的收率获得了具有六个非连续立体中心的高收率的各种有价值的六氢-2 a,5-环氧环戊基[ cd ]异吲哚,并具有六个连续的立体中心。-基甲基)苯胺。
Mechanochemical-Assisted Synthesis of Nitrogen-Doped Carbon Supported Cobalt Catalysts for Efficient and Selective Hydrogenation of Furfural
作者:Song Han、Wen-Ting Chen、Zi-Teng Gao、Hua Guan、Zhang-Min Li、Duan-Jian Tao
DOI:10.1007/s10562-022-04042-y
日期:2023.4
A mechanochemical treatment and subsequent high temperature annealing strategy was developed for the synthesis of nitrogen-doped carbon supported cobaltcatalysts. The as-prepared Co/NC800 catalyst was demonstrated for efficient and selective hydrogenation of furfural into furfuryl-based alcohols and amines with good to excellent yields under optimum conditions. Graphical Abstract
with amines proceeded under an ethylene atmosphere in the presence of a catalytic amount of palladium/carbon to afford a variety of arylamines in good to high yields. The present reaction was carried out under completely non‐aerobic conditions, and which is in contrast with the previously reported aerobic system. has wide applicability affording a variety of aromatic amines, and co‐product of the reaction
A chiral N,N′-dioxide/cobalt(II) complex catalyzed highly diastereoselective and enantioselective tandem aza-Piancatelli rearrangement/intramolecular Diels–Alderreaction has been disclosed. Various valuable hexahydro-2a,5-epoxycyclopenta[cd]isoindoles bearing six contiguous stereocenters have been obtained in good yields with excellent diastereo- and enantio-selectivities from a wide range of both
已公开了一种手性N,N'-二氧化物/钴(II)配合物,催化高度非对映选择性和对映选择性的串联氮杂-Piancatelli重排/分子内狄尔斯-阿尔德反应。从各种现成的2-呋喃基甲醇和N-(呋喃-2)中,以良好的收率获得了具有六个非连续立体中心的高收率的各种有价值的六氢-2 a,5-环氧环戊基[ cd ]异吲哚,并具有六个连续的立体中心。-基甲基)苯胺。