33598-23-1Relevant academic research and scientific papers
Palladium-Catalyzed Coupling of Terminal Alkynes with Benzyl Ammonium Salts
Xu, Silin,Zhang, Zhenming,Han, Chunyu,Hu, Wenkai,Xiao, Tiwen,Yuan, Yanan,Zhao, Junfeng
, p. 12192 - 12197 (2019/10/11)
A highly efficient palladium-catalyzed Sonogashira coupling of benzylic ammonium salts with terminal alkynes is developed. This strategy provides a facile access to a series of internal alkyne derivatives in moderate to excellent yields via C-N bond cleavage and C(sp3)-C(sp) bond formation. The broad substrate scope and high functional group tolerance make this reaction attractive for organic synthesis.
Simple and efficient nickel-catalyzed cross-coupling reaction of alkynylalanes with benzylic and aryl bromides
Biradar, Deepak B.,Gau, Han-Mou
supporting information; experimental part, p. 10467 - 10469 (2011/10/19)
Highly efficient and simple coupling reactions of benzylic and aryl bromides with aluminium acetylide catalyzed by NiCl2(PPh 3)2 are reported. The coupling reactions proceed at room temperature employing 4 mol% catalyst, affording coupling products in excellent yields of up to 95% in short reaction times. The system worked efficiently with aryl and heterocyclic bromides as well.
N,N,N′,N′-tetramethylmethanediamine - A new reagent for aminomethylation of acetylenes
Shaibakova,Titova,Ibragimov,Dzhemilev
experimental part, p. 1126 - 1129 (2009/09/25)
A new procedure has been developed for aminomethylation of terminal acetylenes with N,N,N′,N′-tetramethylmethanediamine in the presence of transition metals and lanthanide complexes and salts. The procedure ensures formation of the corresponding N,N-dimethylprop-2-yn-1-amines with high yield and selectivity.
A new straightforward synthesis of alkynyl sulfones via the sonochemical coupling between alkynyl halides and copper sulfinates
Suzuki, Hitomi,Abe, Hajime
, p. 3717 - 3720 (2007/10/03)
Alkynyl aryl sulfones 2 were easily obtained in moderate to good yields by treating alkynyl iodides 1 with copper arenesulfinates in a tetrahydrofuran suspension under ultrasonic irradiation.
Photosensitized Oxidation of Furans. Part 12. Solvent Effects in Thermal Rearrangement of the 2,5-Peroxides of 2,5-Unsubstituted Furans
Graziano, M. Liliana,Lesce, M. Rosaria,Cinotti, Angela,Scarpati, Rachele
, p. 1833 - 1840 (2007/10/02)
The formation, thermal stability, and modes of thermal rearrangement of the 2,5-peroxides (1a-i) of 2,5-unsubstituted furans are reported.In apolar solvents the main product of thermal rearrangement is the cis diepoxide (3) accompanied by the epoxyfuranones (6) and (7).These rearrangements are thought to proceed via concerted processes, although no distinction can be made between them and rearrangements via diradicals.In basic solvents the 5-hydroxyfuran-2(5H)-ones (4) and (5) are isolated in high yields.In this case the rearrangements are explained by assuming ion pairs, (18), as intermediates.
