Diverse saturated heterocycles from a hydroacylation/conjugate addition cascade.

Diverse saturated heterocycles from a hydroacylation/conjugate addition cascade.
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DOI:
10.1039/d1sc06900d
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发表时间:
2022-02-02
期刊:
影响因子:
8.4
通讯作者:
Willis MC
Willis MC
中科院分区:
化学1区
文献类型:
--
作者:
Iwumene NUN;Moseley DF;Pullin RDC;Willis MC

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Rhodium-catalyzed hydroacylation using alkynes substituted with pendant nucleophiles, delivers linear α,β-unsaturated enone intermediates with excellent regioselectivity. These adducts are used to construct a broad range of diversely substituted, saturated O-, N- and S-heterocycles in a one-pot process. Judicious choice of cyclisation conditions enabled isolation of O-heterocycles with high levels of diastereoselectivity. A variety of derivatisation reactions are also performed, generating functionalised hydroacylation products. This sequence serves as a general approach for the synthesis of fully saturated heterocycles. We demonstrate a one-pot hydroacylation/intramolecular conjugate-addition sequence to access a series of complex stereodefined heterocycles. Subsequent diversification of products is achieved, furnishing functionalized sp3-rich fragments.
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