Reaction of Fischer alkynylcarbene complexes with 1-azadiene derivatives:: unexpected formation of 3,4-dihydropyridines

被引：9

作者：

Barluenga, J ^{[1
]}

Tomás, M

Ballesteros, A

Santamaría, J

Corzo-Suárez, R

Garcia-Granda, S

机构：

[1] Univ Oviedo, Inst Univ Quim Organomet Enrique Moles, CSIC, Unidad Asociada, E-33071 Oviedo, Spain

[2] Univ Oviedo, Dept Quim Fis & Analit, E-33071 Oviedo, Spain

来源：

NEW JOURNAL OF CHEMISTRY | 2001年 / 25卷 / 01期

关键词：

D O I：

10.1039/b005648k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

4-Amino-1-azabutadienes 2 underwent [3 + 3] cyclization with Fischer alkynylcarbene complexes of chromium and tungsten 1 to furnish high yields of substituted 3,4-dihydropyridines 3. The expected pyridine ring formation, which would result from cyclization/aromatization, does not take place. The process is thought to involve a 1,2-imidoyl group shift triggered by a 1,2-metal pentacarbonyl shift as the more characteristic steps. An X-ray diffraction experiment supports the proposed structure for the dihydropyridines.

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页码：8 / 10

页数：3

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