%0 Journal Article %A Li, Wenjun %A Lang, Ming %A Wang, Jian %D 2017 %T Access to Cyclobutadienes via an Organocatalytic Dienamine–Iminium–Allenamine Cascade Approach %U https://acs.figshare.com/articles/journal_contribution/Access_to_Cyclobutadienes_via_an_Organocatalytic_Dienamine_Iminium_Allenamine_Cascade_Approach/5319511 %R 10.1021/acs.orglett.7b02161.s001 %2 https://acs.figshare.com/ndownloader/files/9963268 %K Organocatalytic %K dienamine %K Access %K Approach %K Cyclobutadiene %K ynal %K substrate scope %K mechanism %K aldehyde %K cyclobutadiene %K Cascade %K organocatalytic route %K Dienamine %K cascade %X 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. %I ACS Publications