ELECTRONIC AND STERIC EFFECTS IN THE RHODIUM-COMPLEX CATALYZED CO-CYCLIZATION OF ALKYNES AND NITRILES TO PYRIDINE-DERIVATIVES

被引：55

作者：

DIVERSI, P ^{[1
]}

ERMINI, L ^{[1
]}

INGROSSO, G ^{[1
]}

LUCHERINI, A ^{[1
]}

机构：

[1] UNIV PISA,DIPARTIMENTO CHIM & CHIM IND,VIA RISORGIMENTO 35,I-56126 PISA,ITALY

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1993年 / 447卷 / 02期

关键词：

D O I：

10.1016/0022-328X(93)80252-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A study of the properties exhibited by the catalyst precursors of formula [Rh(eta5-C5H4R)(C2H4)2](R = NMe2, (t)Bu, Me, H Cl, NO2, CF3, or COOMe) in the co-cyclization of a variety of 1-alkynes (R'CCH) and nitriles (R''CN) to pyridine derivatives is reported. Initial reaction rates as well as chemoselectivity and regioselectivity are markedly influenced by the electron donor-acceptor properties of the R groups on the cyclopentadienyl ring, as well as by the steric and electronic effects induced by the substituents (R' and R'') attached to substrates.

引用

页码：291 / 298

页数：8

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