A new Mn(II) metal–organicframework (MOF) 1 was synthesized by the combination of 4,4,4-trifluoro-1-(4-(pyridin-4-yl)phenyl)butane-1,3-dione (L) and Mn(OAc)2 in solution. 1 features a threefold-interpenetrating NbO net containing honeycomb-like channels, in which the opposite Mn(II)···Mn(II) distance is 23.5075(10) Å. Furthermore, 1 can be an idealplatform to support Pd–Au bimetallic alloy nanoparticles
3‐(o‐Carboxyphenyl)propionic acid and four of its heteroatom‐containing analogs, as well as benzene‐ring‐fused analogs, have been shown to undergo a Castagnoli–Cushman reaction when dehydrated in the presence of an imine using aceticanhydride. This provides a facile, diastereoselective route to skeletally diverse arene‐fused ε‐lactams.
Development of the First Menthane-Based Chiral Bis(π-allylpalladium) Catalysis: Asymmetric Allylation of Imines
作者:Rodney A. Fernandes、Dipali A. Chaudhari
DOI:10.1002/ejoc.201101588
日期:2012.4
A new ethylidene menthane-basedchiralπ-allylpalladium complex catalyzes the asymmetricallylation of various imines with allyltributylstannane and 1 equiv. of water to give chiral homoallylamines in good yields and enantioselectivities. The reaction was carried out essentially under neutral conditions and displayed a good transfer of chiral information from the menthane skeleton through the formation
The first example of base‐metal‐catalysed synthesis of amides from the coupling of primary amines with either alcohols or esters is reported. The reactions are catalysed by a new manganese pincercomplex and generate hydrogen gas as the sole byproduct, thus making the overall process atom‐economical and sustainable.
Nickel(0)-Catalyzed Cyclization of <i>N</i>-Benzoylaminals for Isoindolinone Synthesis
作者:Danielle M. Shacklady-McAtee、Srimoyee Dasgupta、Mary P. Watson
DOI:10.1021/ol201248c
日期:2011.7.1
A nickel(0) catalyst effectively mediates the cyclization of N-benzoyl aminals in the presence of a stoichiometric Lewis acid. This method enables preparation of a variety of isoindolinones with substitution on the benzoyl fragment and C-3 carbon. This reaction likely proceeds via an α-amidoalkylnickel(II) intermediate, which then may cyclize via either an electrophilic aromatic substitution or an