beta-nitrostyrene and 15-crown-5

beta-nitrostyrene has been researched along with 15-crown-5* in 1 studies

Other Studies

1 other study(ies) available for beta-nitrostyrene and 15-crown-5

ArticleYear
Synthesis of ribo-hexopyranoside- and altrose-based azacrown ethers and their application in an asymmetric Michael addition.
    Carbohydrate research, 2013, Jan-10, Volume: 365

    The synthesis of four new ribo-hexopyranoside-based chiral lariat ethers of monoaza-15-crown-5 type and two altropyranoside-based crown ethers were elaborated. Our syntheses utilized the regioselective ring opening of the oxiran moiety of the 2,3-anhydro sugars by nucleophilic reagents to afford the key intermediates. The reaction of methyl-2,3-anhydro-4,6-O-benzylidene-α-D-mannopyranoside with ethanolamine is especially of interest to afford a 3-substituted altropyranoside. One of the ribo-hexopyranoside-based lariat ethers with a 4-methoxyphenyl substituent induced an enantioselectivity of 80% when used as catalyst in the Michael addition of diethyl acetamidomalonate to trans-β-nitrostyrene under phase transfer catalytic conditions.

    Topics: Borohydrides; Catalysis; Chemistry Techniques, Synthetic; Chromatography, Liquid; Crown Ethers; Hexoses; Magnetic Resonance Spectroscopy; Malonates; Molecular Structure; Phase Transition; Quaternary Ammonium Compounds; Styrenes

2013