Copper-catalyzed ring-opening C(sp<sup>3</sup>)–N coupling of cycloketone oxime esters: access to 1°, 2° and 3° alkyl amines
作者:Li Tian、Shuangqiu Gao、Rui Wang、Yang Li、Chunlin Tang、Lili Shi、Junkai Fu
DOI:10.1039/c9cc02030f
日期:——
A novel copper-catalyzed C(sp3)–N coupling of cycloketone oxime esters with nitrogen nucleophiles has been realized. All of the N-aryl/alkylanilines, anilines and benzophenoneimine could be employed in this protocol to produce a variety of 1°, 2° and 3° alkyl amines in one or two steps. These resultant cyano-containing alkyl amines were proven to be versatile synthetic building blocks in a variety
Alkylation of the α-amino C–H bonds of anilines photocatalyzed by a DMEDA-Cu-benzophenone complex: reaction scope and mechanistic studies
作者:Baptiste Abadie、Gediminas Jonusauskas、Nathan D. McClenaghan、Patrick Y. Toullec、Jean-Marc Vincent
DOI:10.1039/d1ob00960e
日期:——
complex 1 incorporating a BP chromophore is a highly active and chemoselective photocatalyst for the alkylation of α-amino C–H bonds of anilines. The reaction was shown to proceed with a broad substrate scope in the absence of additives. Extensive mechanisticstudies were performed, in particular using transient absorption spectroscopy, and spectroscopic signatures of key intermediates were identified
含有 BP 发色团的 Cu( II )配合物1是一种高活性和化学选择性的光催化剂,用于苯胺的 α-氨基 C-H 键的烷基化。该反应显示在没有添加剂的情况下以广泛的底物范围进行。进行了广泛的机理研究,特别是使用瞬态吸收光谱,并在催化条件下确定了关键中间体的光谱特征。最后,通过一锅法进行多组分 CuAAC 和烯烃加氢烷基化反应,展示了1作为多任务催化剂的能力。
Copper-Catalyzed Cyanoalkylation of Amines via C–C Bond Cleavage: An Approach for C(sp<sup>3</sup>)–N Bond Formations
The efficient copper-catalyzed cyanoalkylation of amines via C–Cbondcleavage has been demonstrated. Distinctive features of this procedure involves mild conditions, broad range of nitrogen nucleophiles, high selectivity, and good functional group tolerance, thus providing a useful approach for the C(sp3)–N bond formations. Most importantly, this protocol is applicable to the late-stage functionalization
Phenothiazine derivatives, their production and use
申请人:Takeda Chemical Industries, Ltd.
公开号:US05532171A1
公开(公告)日:1996-07-02
There is disclosed a novel phenothiazine derivative of the general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and are a C.sub.1-6 alkyl group and at least one of them has as a substituent a group which can react with amino group, thiol group or carboxyl group, and X.sup.- is a counter ion of the phenazathionium. Their production and the intermediates used in the production are also disclosed. The compound (I) is a derivative of methylene blue and is applicable to photodynamic therapy of cancer or immunoassays utilizing chemiluminescence.
POLYMERS FUNCTIONALIZED WITH NITRILE COMPOUNDS COMTAINING A PROTECTED AMINO GROUP
申请人:Luo Steven
公开号:US20120059112A1
公开(公告)日:2012-03-08
A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitrile compound containing a protected amino group.