MICHAEL ADDUCTS OF (ALKYNYLCARBENE)PENTACARBONYLCHROMIUM COMPLEXES - FORMATION, STEREOCHEMISTRY, AND THERMAL REARRANGEMENT

被引：86

作者：

DUETSCH, M

STEIN, F

LACKMANN, R

POHL, E

HERBSTIRMER, R

DEMEIJERE, A

机构：

[1] UNIV GOTTINGEN,INST ORGAN CHEM,TAMMANNSTR 2,W-3400 GOTTINGEN,GERMANY

[2] UNIV HAMBURG,INST ORGAN CHEM,W-2000 HAMBURG 13,GERMANY

[3] UNIV GOTTINGEN,INST ANORGAN CHEM,W-3400 GOTTINGEN,GERMANY

来源：

CHEMISCHE BERICHTE-RECUEIL | 1992年 / 125卷 / 09期

关键词：

CHROMIUM; ALKYNYLCARBENE COMPLEXES; VINYLCARBENECHROMIUM COMPLEXES; BETA-DONOR-SUBSTITUTED; CARBENE COMPLEXES; VINYL; CHELATED;

D O I：

10.1002/cber.19921250913

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Beta-Donor-substituted alpha,beta-unsaturated chromium carbene complexes (CO)5CrC(OEt)C = CR(XR(n)') (X = N, O, S; 3, 9, 11 - 16, 22 - 25) have been synthesized by Michael addition of amines, alcohols, and thiols to alkynylcarbene complexes (CO)5CrC(OEt)C = Cr (1). The configurations of the newly formed C - C double bonds have been determined by NOE/NOESY measurements and X-ray crystal structure analysis. These vinylcarbene complexes lose one carbonyl ligand in refluxing tetrahydrofuran to give tetracarbonyl complexes (CO)4CrC(OEt)C = CR(XR(n)') (X = N, O, S; 26 - 28).

引用

页码：2051 / 2065

页数：15

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