52714-30-4Relevant academic research and scientific papers
Novel (N-heterocyclic carbene)Pd(pyridine)Br2 complexes for carbonylative Sonogashira coupling reactions: Catalytic efficiency and scope for arylalkynes, alkylalkynes and dialkynes
Ibrahim, Mansur,Malik, Imran,Mansour, Waseem,Sharif, Muhammad,Fettouhi, Mohammed,El Ali, Bassam
, (2018/03/05)
New N,N′-substituted imidazolium salts and their corresponding dibromidopyridine–palladium(II) complexes were successfully synthesized and characterized. Reactions of palladium bromide with the newly synthesized N,N′-substituted imidazolium bromides (2a a
Rapid access to unsymmetrical tolanes and alkynones by sequentially palladium-catalyzed one-pot processes
G?tzinger, Alissa C.,Müller, Thomas. J. J.
, p. 3498 - 3500 (2016/04/19)
Alkynones as well as unsymmetrically substituted tolanes (diarylalkynes) can be rapidly generated in a one-pot fashion via sequential palladium catalysis. Terminal alkynes, formed in situ by protecting-group free palladium-catalyzed coupling of aryl iodides with ethynyl magnesium bromide, are subsequently transformed by Sonogashira coupling with aryl halides or aroyl chlorides to furnish unsymmetrically substituted alkynes in good to excellent yields.
Chemistry of 1,3-diarylpropynones in superacids
Vasilyev,Walspurger,Haouas,Sommer,Pale,Rudenko
, p. 3483 - 3489 (2007/10/03)
In superacids with H0 = -14 to -20, it has been found that 1,3-diarylpropynones ArC≡CCOAr′ are either protonated on oxygen of carbonyl groups with the formation of stable ions ArC≡CC(O +H)Ar′ or undergo further transformations when t
ISOMERIZATION OF α-ACETYLENIC KETONES
Shvartsberg, M. S.,Fedenok, L. G.
, p. 1906 - 1910 (2007/10/02)
A method is suggested for isomerization of α-acetylenic ketones with migration of oxo group from position 1 to position 3 and of the triple bond position 2 to position 1 of the ketoacetylenic fragment; it consists of addition of Et2NH at the triple bond o
