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Access to Cyclobutadienes via an Organocatalytic Dienamine–Iminium–Allenamine Cascade Approach

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Version 2 2017-12-11, 19:56
Version 1 2017-08-17, 15:04
journal contribution
posted on 2017-09-01, 00:00 authored by Wenjun Li, Ming Lang, Jian Wang
A new organocatalytic route to cyclobutadienes from α,β-unsaturated aldehydes and ynals is described. This protocol allows a broad substrate scope and mild conditions. Furthermore, a proposed mechanism of a dienamine–iminium–allenamine cascade process is discussed.

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