New intra-intermolecular criss-cross cycloaddition of unsymmetrical allenylazines with alkynes leading to three fused five-membered heterocycles
| Authors | |
|---|---|
| Year of publication | 2005 |
| Type | Article in Periodical |
| Magazine / Source | Tetrahedron |
| MU Faculty or unit | |
| Citation | |
| Field | Organic chemistry |
| Keywords | Criss-cross; Cycloaddition; 1;3-Dipolar; Unsymmetrical azine; Allene; Alkyne; 1;10-Diazatricyclo[5.2.1.04;10]deca-2;6-diene |
| Description | This report describes a new type of intraintermolecular criss-cross cycloadditions. Thermal reactions of unsymmetrical allenylazines in the presence of alkynes led to three fused five-membered heterocycles in some cases. In the case of unsymmetrical substituted alkynes, a regioselectivity was observed. The molecular structures of all products are discussed. One X-ray crystal structure is also reported. |
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