27548-25-0Relevant academic research and scientific papers
N, O-ligand accelerated zinc-catalyzed transesterification of alcohols with vinyl esters
Mino, Takashi,Hasegawa, Tae,Shirae, Yoshiaki,Sakamoto, Masami,Fujita, Tsutomu
, p. 4389 - 4396 (2008/02/13)
N-Phenyldiethanolamine (1f) is an efficient ligand for zinc-catalyzed transesterification of alcohols with vinyl acetate (R3 = Me) at room temperature. In the case of using other vinyl esters (R3 = Et, n-Pr, Ph), the corresponding products were easily obtained in the presence of pyridine-type ligand 2 instead of aminoalcohol 1f.
Cross-coupling of benzylic acetates with arylboronic acids: One-pot transformation of benzylic alcohols to diarylmethanes
Kuwano, Ryoichi,Yokogi, Masashi
, p. 5899 - 5901 (2007/10/03)
Benzylic acetates reacted with arylboronic acids in the presence of a DPEphos-[Pd(η3-C3H5)Cl]2 catalyst when tert-amyl alcohol was used as a solvent, and the catalytic cross-couplings produced diarylmethanes in high yields (up to 94% isolated yield). The Royal Society of Chemistry 2005.
Transesterification of various alcohols with vinyl acetate under mild conditions catalyzed by diethylzinc using N-substituted diethanolamine as a ligand
Shirae, Yoshiaki,Mino, Takashi,Hasegawa, Tae,Sakamoto, Masami,Fujita, Tsutomu
, p. 5877 - 5879 (2007/10/03)
Commercially available, inexpensive N-phenyldiethanolamine (6) is an efficient ligand for zinc-catalyzed transesterification. The use of 6/Et 2Zn for reactions between various alcohols and vinyl acetate at room temperature produced the desired products in good yields.
Benzylic Bromination-Acetoxylation of Toluenes by Bromide Ion Catalyzed Thermal Decomposition of Peroxydisulfate in Acetic Acid in the Presence of Acetate Ions
Citterio, Attilio,Santi, Roberto,Pagani, Anselmo
, p. 4925 - 4927 (2007/10/02)
Side-chain bromination and acetoxylation of alkylaromatics by halide ion induced decomposition of potassium peroxydisulfate in acetic acid have been studied by product analysis techniques.Catalytic amounts of lithium bromide in the presence of sodium acetate were found effective in promoting benzylic bromination, followed by conversion to the corresponding benzyl acetates by reaction with acetate.The reaction is interpreted to take place by the redox and free-radical chain mechanism involving bromine atoms (ρ = -1.38 vs. ? + for substituted toluenes).In competiti ve experiments, benzyl and 4-nitrobenzyl acetates were found lees reactive than the corresponding toluenes in acetic acid with the couple S2O82-/Br- but more reactive in carbon tetrachloride with N-bromosuccinimide.
