Recyclable Thermosets Based on Dynamic Amidation and Aza-Michael Addition Chemistry
نویسندگان
چکیده
منابع مشابه
N-heterocyclic carbene-catalyzed aza-Michael addition.
Aza-Michael addition of amines, including aromatic and aliphatic amines, with α, β-unsaturated ketones was realized employing N-Heterocyclic Carbene (NHC) as organocatalyst, yielding β-amino ketones with up to 98% yield.
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A series of novel proline-based reduced dipeptides was developed and evaluated for a direct Michael addition of ketones and aldehydes to nitroalkenes. Excellent yields (up to 95%), diastereoselectivities (up to 98% dr) and enantioselectivities (up to 98% ee) were achieved in the presence of 5 mol% catalyst without any additional additives at room temperature.
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A bifunctional squaramide catalysed aza-Michael/Michael cascade reaction between nitroalkenes and tosylaminomethyl enones or enoates has been developed. This organocatalytic cascade reaction provides easy access to highly functionalized chiral pyrrolidines with a broad substrate scope, giving the desired products in good yields (up to 99%) with good diastereoselectivities (up to 91 : 9 dr) and ...
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ژورنال
عنوان ژورنال: Macromolecules
سال: 2016
ISSN: 0024-9297,1520-5835
DOI: 10.1021/acs.macromol.6b01807