Ligand-Enabled γ-C(sp<sup>3</sup>)–H Activation of Ketones
作者:Ru-Yi Zhu、Zi-Qi Li、Han Seul Park、Chris H. Senanayake、Jin-Quan Yu
DOI:10.1021/jacs.8b01359
日期:2018.3.14
are identified to enable C(sp3)-H activation for the first time. A rare six-membered palladacycle intermediate is isolated and characterized to elucidate the reaction mechanism. Both (hetero)arylation and vinylation of γ-C(sp3)-H bonds are demonstrated. Sequential β- and γ-C(sp3)-H (hetero)arylation of muscone showcases the utility of this method for late-stagediversification. A convenient Mn(II)-catalyzed
The invention of new radical chain reactions. part X
作者:Derek H.R. Barton、Hideo Togo、Samir Z. Zard
DOI:10.1016/s0040-4020(01)91351-1
日期:1985.1
oxidised to carboxylic acids by treatment with alkaline hydrogen peroxide. Reductive cleavage to the corresponding aldehydes or ketones is efficiently carried out by the action of TiCl3. Addition of methylmagnesiumiodide to the methyl ketone derived from 3α-acetoxy 11-oxo cholanic acid gives steroid possessing the 25-hydroxycholesterol side chain of the vitamin D3 metabotites. Radical additions to
衍生自硫代异羟肟酸酯的自由基容易加到硝基烯烃(Z = NO 2)中,从而获得高产率的α-亚硝基硫化物。在结构允许的情况下,这些加合物通过用碱性过氧化氢处理很容易被氧化成羧酸。通过TiCl 3的作用,可以有效地进行相应的醛或酮的还原裂解。将甲基碘化镁加到衍生自3α-乙酰氧基11-氧代胆酸的甲基酮中,得到的类固醇具有维生素D 3代谢物的25-羟基胆固醇侧链。简述了对1-苯基硫-2-硝基丙烯的自由基加成反应。
Novel heterocyclic amide derivatives and their use as dopamine D3 receptor ligands
申请人:——
公开号:US20040030137A1
公开(公告)日:2004-02-12
The invention relates to heterocyclic substituted amide derivatives that display selective binding to dopamine D
3
receptors. In another aspect, the invention relates to a method for treating central nervous system disorders associated with the dopamine D
3
receptor activity in a patient in need of such treatment comprising administering to the subject a therapeutically effective amount of said compounds for alleviation of such disorder. The central nervous system disorders that may be treated with these compounds include Psychotic Disorders, Substance Dependence, Substance Abuse, Dyskinetic Disorders (e.g. Parkinson's Disease, Parkinsonism, Neuroleptic-Induced Tardive Dyskinesia, Gilles de la Tourette Syndrome and Huntington's Disease), Dementia, Anxiety Disorders, Sleep Disorders, Circadian Rhythm Disorders and Mood Disorders. The subject invention is also directed towards processes for the preparation of the compounds described herein as well as methods for making and using the compounds as imaging agents for dopamine D
3
receptors.
The present invention relates to metal complexes and to elec
tronic devices, in particular organic electroluminescent devices, com-pris
ing these metal complexes. M(L)n(L′)m (formula 1), where the compound of the gene
ral formula (1) contains a moiety M(L)n of the formula (2).
Intermediates useful for synthesis of cephalosporins are disclosed, which intermediates are concerned with 1,2,3-thiadiazole-4-thiolates and the preparation of such thiolates.