Solvent-controlled direct radical oxyphosphorylation of styrenes mediated by Manganese(III)
作者:Guo-Yu Zhang、Cheng-Kun Li、Da-Peng Li、Run-Sheng Zeng、Adedamola Shoberu、Jian-Ping Zou
DOI:10.1016/j.tet.2016.04.013
日期:2016.6
Direct radical oxyphosphorylation of styrenes with diarylphosphine oxides and dialkylphosphites mediated by Mn(OAc)3 is described. The solvent played a key role in this selective difunctionalization reaction.
GPR52 Antagonist Reduces Huntingtin Levels and Ameliorates Huntington’s Disease-Related Phenotypes
作者:Congcong Wang、Yu-Fang Zhang、Shimeng Guo、Quan Zhao、Yanping Zeng、Zhicheng Xie、Xin Xie、Boxun Lu、Youhong Hu
DOI:10.1021/acs.jmedchem.0c01133
日期:2021.1.28
studies showed that Comp-43 reduces mHTT levels by targeting GPR52 and promotes survival of mouse primary striatal neurons. Moreover, in vivo study showed that Comp-43 not only reduces mHTT levels but also rescues HD-related phenotypes in HdhQ140 mice. Taken together, our study confirms that inhibition of GPR52 is a promising strategy for HD therapy, and the GPR52antagonist Comp-43 might serve as a lead
A General Procedure for the Preparation of β-Ketophosphonates
作者:Kevin M. Maloney、John Y. L. Chung
DOI:10.1021/jo901552k
日期:2009.10.2
A mild, high-yielding procedure for the preparation of β-ketophosphonates is described. The condensation is general with respect to the ester and phosphonate, and the products are obtained in high yields within minutes at 0 °C. The reaction procedure is operationally simple and amenable to large-scale preparations.
Organocatalytic Enantio- and Diastereoselective Construction of <i>syn</i>-1,3-Diol Motifs via Dynamic Kinetic Resolution of In Situ Generated Chiral Cyanohydrins
syn-1,3-dioxanes as protected 1,3-diols via dynamickineticresolution of in situ generated chiral cyanohydrins has been developed. This method involves a reversible cyanohydrin formation/hemiacetalization/intramolecular oxy-Michael addition reactioncascade, affording a chiral syn-1,3-diol structure with simultaneous construction of two stereogenic centers. The use of trifluoromethyl ketones is crucial
Synthesis of non-racemic dihydrofurans via Ni(II)-catalyzed asymmetric Michael addition
作者:Dmitry S. Nikerov、Maria A. Ashatkina、Vadim A. Shiryaev、Ilya M. Tkachenko、Victor B. Rybakov、Alexander N. Reznikov、Yuri N. Klimochkin
DOI:10.1016/j.tet.2021.132029
日期:2021.3
A highly efficient strategy for the enantio- and diastereoselective synthesis of 4,5-dihydrofuran derivatives was developed. Addition of carbonyl compounds which contain bulky adamantyl substituent and β-keto or phosphonate group to conjugated α-bromonitroolefins in the presence of a chiral Ni(II) complex gave corresponding non-racemic products of Michael reaction. These adducts were used for intramolecular