14398-42-6Relevant articles and documents
CuH-Catalyzed Asymmetric Reductive Amidation of α,β-Unsaturated Carboxylic Acids
Link, Achim,Zhou, Yujing,Buchwald, Stephen L.
supporting information, p. 5666 - 5670 (2020/07/24)
The direct enantioselective copper hydride (CuH)-catalyzed synthesis of β-chiral amides from α,β-unsaturated carboxylic acids and secondary amines under mild reaction conditions is reported. The method utilizes readily accessible carboxylic acids and tolerates a variety of functional groups in the β-position including several heteroarenes. A subsequent iridium-catalyzed reduction to γ-chiral amines can be performed in the same flask without purification of the intermediate amides.
Synthesis of the 3-o-retinoyl-l-ascorbic acid and related compounds: Characterization and reducing activity against DPPH
Yamano, Yumiko,Ito, Masayoshi
, p. 289 - 299 (2007/10/03)
Novel hybrid vitamin, 3-O-retinoyl-L-ascorbic acid (3a) was conveniently prepared by reaction of sodium L-ascorbate with retinoyl fluoride. The 3-O-acylated structure was confirmed by the comparison of spectral data of its methylated compound with those of 3-O-methyl-2-O-retinoyl-L-ascorbic acid (20) prepared from 5,6-O-isopropylidene-3-O-methyl-L-ascorbic acid. 3-O-Retinoyl-L-ascorbic acid (3a) showed a reducing activity against the stable radical, α,α-diphenyl-β-picrylhydrazyl (DPPH).
Ionylideneacetic Acids and Abscisic Acid Biosynthesis by Cercospora rosicola
Norman, Shirley M.,Poling, Stephen M.,Maier, V. P.,Nelson, Mary D.
, p. 2317 - 2324 (2007/10/02)
Several compounds having the basic α-ionylideneacetic acid stucture were tested in Cercospora rosicola resuspensions.At 100 μM, all the compounds inhibited abscisic acid (ABA) biosynthesis.Time studies with unlabelled and deuterated (2Z,4E)- and (2E,4E)-α
