362604-08-8Relevant academic research and scientific papers
Dehydrogenative and decarboxylative C-H alkynylation of heteroarenes catalyzed by Pd(II)-carbene complex
Parsharamulu, Thupakula,Vishnuvardhan Reddy, Police,Likhar, Pravin R.,Lakshmi Kantam, Mannepalli
, p. 1975 - 1981 (2015/03/30)
The direct alkynylation of heteroarenes was accomplished with easily prepared Pd(II) carbene complex (Pd Cat.) by two complementary strategies. Pd Cat. catalysed cross-dehydrogenative coupling of terminal alkynes with heteroarenes was achieved in the firs
Room-temperature direct alkynylation of arenes with copper acetylides
Theunissen, Cdric,Evano, Gwilherm
supporting information, p. 4488 - 4491 (2015/01/09)
C-H bond in azoles and polyhalogenated arenes can be smoothly activated by copper acetylides to give the corresponding alkynylated (hetero)arenes by simple reaction at room temperature in the presence of phenanthroline and lithium tert-butoxide under an oxygen atmosphere. These stable, unreactive, and readily available polymers act as especially efficient and practical reagents for the introduction of an alkyne group to a wide number of arenes under remarkably mild conditions.
Synthesis of internal alkynes through the Pd-catalyzed coupling of heteroaryl halides with terminal alkynes
Lu, Linhua,Yan, Hong,Sun, Peng,Zhu, Yan,Yang, Hailong,Liu, Defu,Rong, Guangwei,Mao, Jincheng
supporting information, p. 1644 - 1648 (2013/04/10)
Sonogashira-type cross-couplings of functionalized heterocyclic halides with terminal alkynes were performed efficiently at room temperature. The heteroaryl halides were easily prepared from the corresponding heterocyclic compounds. The catalytic system tolerated a very broad scope of substrates; oxazoles, thiazoles, and furans participate in this type of reaction for the first time. This reaction provides an efficient method for the direct functionalization of heterocycles. Sonogashira-type cross-coupling of functionalized heterocyclic halides with terminal alkynes are performed efficiently at room temperature. The catalytic system tolerates a very broad scope of substrates; oxazoles, thiazoles, and furans participate in this type of reaction for the first time. The reaction provides an efficient method for the direct functionalization of heterocycles. Copyright
N-propargyl-2-alkynylbenzothiazolium aza-enediynes: Role of the 2-alkynylbenzothiazolium functionality in DNA cleavage
Kumar, Dalip,David, Wendi M,Kerwin, Sean M
, p. 2971 - 2974 (2007/10/03)
The 2-alkynylbenzothiazolium salts 3a-d incorporating an N-propargyl moiety have been prepared as aza-enediyne analogues. While these aza-enediynes are shown to be modest DNA cleavage agents, DNA cleavage was also observed with the N-methyl-2-alkynylbenzothiazolium salt 4, which lacks the aza-enediyne moiety. The structural requirements for DNA cleavage, and the correlation of DNA cleavage efficiency with the propensity of these compounds to undergo nucleophilic addition by methanol support a proposed DNA cleavage mechanism involving DNA alkylation by appropriate 2-alkynyl-substituted benzothiazolium salts.
