Proline derived guanidine catalysts forge extensive H-bonded architectures: a solution and solid state study.
Proline derived guanidine catalysts forge extensive H-bonded architectures: a solution and solid state study.
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DOI:
10.1039/c9ra07508a
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发表时间:
2020-06-10
期刊:
影响因子:
3.9
通讯作者:
Wilson, Jack A.
中科院分区:
文献类型:
--
作者:
Al-Taie, Zahraa S.;Anetts, Simon R.;Christensen, Jeppe;Coles, Simon J.;Horton, Peter N.;Evans, Daniel M.;Jones, Leigh F.;de Kleijne, Frank F. J.;Ledbetter, Shaun M.;Mehdar, Yassin T. H.;Murphy, Patrick J.;Wilson, Jack A.
The preparation of a range of amino acid derived guanidine organocatalysts is reported together with their application to the Michael addition of 2-hydroxy-1,4-napthoquinone to β-nitrostyrene, achieving a maximum ee of 56%. Some insight into the mechanism was sought by using X-ray crystallography and a detailed study of the intra- and intermolecular hydrogen bonding is reported. Catalysts assemble! We present the design and synthesis of a large family of amino acid derived guanidine organic moieties as catalysts in the solution state and building blocks towards extended H-bonded architectures upon crystallisation.
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