61064-98-0Relevant academic research and scientific papers
Gas-phase domino cyclization of phosphonium ylides leading to the total synthesis of Eustifoline D
Aitken, R. Alan,Murray, Lorna
supporting information, p. 4328 - 4332 (2017/10/17)
Six stabilised phosphonium ylides bearing ortho-benzylaminophenyl and cinnamoyl (or a heterocyclic analogue) groups have been prepared and upon flash vacuum pyrolysis at 800 °C were found to undergo cascade cyclization processes to give mainly 3-styrylquinolines but also in some cases ring-fused carbazoles and other fused-ring heterocyclic products. By starting with an appropriate ring-methylated precursor the natural product Eustifoline D was obtained in 19% yield in the pyrolysis in addition to the 3-(2-furylethenyl)quinoline (46%).
Palladium-catalyzed arylation of styrene and acrylic acid in water
Bumagin, N. A.,Bykov, V. V.,Sukhomlinova, L. I.,Tolstaya, T. P.,Beletskaya, I. P.
, p. 259 - 262 (2007/10/02)
Palladium-catalyzed arylations of styrene and acrylic acid are shown to occur in the presence of base (Na2CO3 or K2CO3) in pure water using simple palladium compounds as catalyst precursors.Keywords: Palladium; Catalysis; Water; Solvent; Aryl
Palladium-Catalyzed Reactions of Acrylic Acid and Styrene with Aryl Halides in Water
Bumagin, N. A.,Bykov, V. V.,Beletskaya, I. P.
, p. 439 - 444 (2007/10/03)
New convenient versions of the Heck reaction in water were proposed for preparation of substituted cinnamic acids and stilbene.Arylation of acrylic acid with aryl halides was effected with palladium PdX2 or palladium black as catalysts in the presence of Na2CO3.To arylate styrene in water it is necessary to use palladium complexes with tris(o-tolyl)phosphine ligands, K2CO3, and small amounts of Bu4NBr or DMF.
