Hoveyda–Grubbs catalysts with an N→Ru coordinate bond in a six-membered ring. Synthesis of stable, industrially scalable, highly efficient ruthenium metathesis catalysts and 2-vinylbenzylamine ligands as their precursors
作者:Kirill B Polyanskii、Kseniia A Alekseeva、Pavel V Raspertov、Pavel A Kumandin、Eugeniya V Nikitina、Atash V Gurbanov、Fedor Ivanovich Zubkov
DOI:10.3762/bjoc.15.73
日期:——
of this chemistry is further demonstrated by the tests of the novel catalysts (up to 10−2 mol %) in different metathesis reactions such as cross metathesis (CM), ring-closingmetathesis (RCM) and ring-opening cross metathesis (ROCM).
Construction of C(sp<sup>2</sup>)–X (X = Br, Cl) Bonds through a Copper-Catalyzed Atom-Transfer Radical Process: Application for the 1,4-Difunctionalization of Isoquinolinium Salts
作者:Qiu Sun、Yuan-Yuan Zhang、Jing Sun、Ying Han、Xiaodong Jia、Chao-Guo Yan
DOI:10.1021/acs.orglett.7b03751
日期:2018.2.16
A highly efficient Cu-catalyzed 1,4-difunctionalization of isoquinolinium salts was developed with ether and X– (X = Br, Cl) as the halogen source under mild conditions. This transformation involves the combination of oxidative coupling and copper-catalyzed halogen atom-transfer radicalprocesses. This method not only provides an efficient way to prepare various substituted azaarenes but also achieves
Synthesis of 3,4-dihydroisoquinolines, 2-alkyl(Acyl)-1(2H)-3,4-dihydroisoquinolinones, 2-alkyl-1(2H)-isoquinolinones and 1-alkyl-2(2H)-quinolinones by oxidation with potassium permanganate
作者:Atanas P. Venkov、Stela M. Statkova-Abeghe
DOI:10.1016/0040-4020(95)00971-x
日期:1996.1
Synthesis of 3,4-dihydroisoquinolines 2,2-alkyl- 6 and 2-acyl-3,4-dihydro -1(2H)-isoquinolinones 9, 2-alkyl-1(2H)- isoquinolinones 14, N-alkyl-3,4-dihydro-2(2H)-quinolinones 16 and N-alkyl-2(2H)-quinolinones 19 by oxidation of 1,2,3,4-tetrahydroisoquinolines 1, N-alkyl (acyl)iminium salts of 3,4-dihydroisoquinolines 5,8 and isoquinoline 13 as well as of N-alkyl ammonium salts of tetrahydroquinoline