Organic syntheses via transition metal complexes.: 117.: 3-aza-1-metalla-1,3,5-hexatrienes (M = Cr, W):: Generation and π-cyclization to pyrroles

被引:6
作者
Aumann, R [1 ]
Vogt, D [1 ]
Fröhlich, R [1 ]
机构
[1] Univ Munster, Organ Chem Inst, D-48149 Munster, Germany
关键词
D O I
10.1021/om011032d
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
3-Aza-1-metallahexa-1,3,5-trienes 3a-f were obtained in good yields by condensation of the (NH2-amino)carbene complexes (CO)(5)M=C(Ph)NH2 (1a,b; M = Cr, W) with alpha,beta-unsaturated acid amides 2 in the presence of phosphoryl chloride and triethylamine. Compounds 3 undergo a thermally induced pi-cyclization to pyrroles 4.
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页码:1819 / 1824
页数:6
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