866931-65-9Relevant academic research and scientific papers
Construction of Six-Membered Silacyclic Skeletons via Platinum-Catalyzed Tandem Hydrosilylation/Cyclization with Dihydrosilanes
Long, Peng-Wei,Bai, Xing-Feng,Ye, Fei,Li, Li,Xu, Zheng,Yang, Ke-Fang,Cui, Yu-Ming,Zheng, Zhan-Jiang,Xu, Li-Wen
supporting information, p. 2825 - 2830 (2018/08/17)
Catalytic silicon-carbon or silicon-heteroatom bond-forming hydrosilylation has become increasingly important in synthetic chemistry, catalysis and organosilicon chemistry. Herein we report a platinum-catalyzed one-pot and tandem hydrosilylation/cyclization of OH-containing alkynes with dihydrosilanes, allowing for facile synthesis of six-membered organosilicon compounds, including silyloxycycles and cyclic siloxanes in high yields and with good stereoselectivities. (Figure presented.).
A gold(i)-catalyzed intramolecular tandem cyclization reaction of alkylidenecyclopropane-containing alkynes
Fang, Wei,Wei, Yin,Shi, Min
supporting information, p. 11666 - 11669 (2017/11/03)
A novel gold(i)-catalyzed intramolecular tandem cyclization reaction of ortho-(arylethynyl)arenemethylenecyclopropanes provided an efficient approach to prepare functionalized 11H-benzo[a]fluorene derivatives in moderate to good yields. Further transformations as well as applications of the products have been presented and a plausible reaction mechanism has also been proposed on the basis of deuterium labeling and control experiments.
On water: Silver-catalyzed domino approach for the synthesis of benzoxazine/oxazine-fused isoquinolines and naphthyridines from o-alkynyl aldehydes
Verma, Akhilesh K.,Choudhary, Deepak,Saunthwal, Rakesh K.,Rustagi, Vineeta,Patel, Monika,Tiwari, Rakesh K.
, p. 6657 - 6669 (2013/07/26)
An operationally simple domino approach for the silver-catalyzed synthesis of oxazine/benzoxazine-fused isoquinolines 5a-q and naphthyridines 6a-v by the reaction of o-alkynyl aldehydes 3a-aa with amines having embedded nucleophiles 4a-d under mild reacti
Gold-catalyzed synthesis of dibenzopentalenes - Evidence for gold vinylidenes
Hashmi, A. Stephen K.,Wieteck, Marcel,Braun, Ingo,Noesel, Pascal,Jongbloed, Linda,Rudolph, Matthias,Rominger, Frank
supporting information; experimental part, p. 555 - 562 (2012/04/17)
A series of easily accessible arene-1,2-diynes, bearing one aryl substituent on one of the alkynyl groups, is readily converted to dibenzopentalenes in good yields by gold(I) catalysts. The participation of gold acetylides could be proven by the direct conversion to the corresponding gem-diaurated dibenzopentalenes with a gold catalyst. From an experiment with a gold acetylide complex and stoichiometric amounts of the gold "catalyst" the corresponding gem-diaurated complex of a dibenzopentalene could be obtained and characterized by X-ray crystal structure analysis. Labelling studies with deuterated alkynes show the expected deuteration of the two remaining positions of the pentalene core. All this provides evidence for a dual activation mode of the reaction and gold(I) vinylidene complexes as intermediates of the catalytic cycle. Copyright
