A highly reactive titanium precatalyst for intramolecular hydroamination reactions

被引：142

作者：

Ackermann, L

Bergman, RG ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Ctr New Direct Organ Synth, Berkeley, CA 94720 USA

来源：

ORGANIC LETTERS | 2002年 / 4卷 / 09期

关键词：

D O I：

10.1021/ol0256724

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHIC] Tetrakisamido titanium complexes are significantly more active than Cp2TiMe2 (1) in the intramolecular hydroamination of aminoalkynes and aminoallenes. In the latter case, the regioselectivity of the transformation depends on the nature of the precatalyst, yielding the most selective and reactive catalysis with the bis(sulfonamido) complex 11.

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页码：1475 / 1478

页数：4

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