Preparation of Highly Hindered Polyenes with tert-Butyl Groups in Internal Positions

被引:9
作者
Betz, Markus [1 ]
Hopf, Henning [1 ]
Ernst, Ludger [2 ]
Jones, Peter G. [3 ]
Okamoto, Yoshio [4 ]
机构
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Organ Chem, D-38106 Braunschweig, Germany
[2] Tech Univ Carolo Wilhelmina Braunschweig, NMR Lab Chem Inst, D-38106 Braunschweig, Germany
[3] Tech Univ Carolo Wilhelmina Braunschweig, Inst Anorgan & Analyt Chem, D-38023 Braunschweig, Germany
[4] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
bromination; chirality; conjugation; epoxidation; polyolefins; tetraenes; AROMATIC HALOGEN SUBSTITUTION; CHIRAL BUTADIENES; MAGNETIC-RESONANCE; ROTATION; ENANTIOMERIZATION; MECHANISMS; KINETICS; ROUTE;
D O I
10.1002/chem.201001250
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The conjugated tetraenes 3 and 4a-c have been prepared and shown to possess an orthogonal structure. This was not only demonstrated by their spectroscopic properties and X-ray structural analysis of solid representatives (e.g., 4a-c) but also by the resolution of these chiral compounds by GC and HPLC chromatography using various chiral selector systems. The chemical behavior of the typical tetraene 4a has been studied using bromination, hydrogenation, epoxidation, and photo equilibration reactions.
引用
收藏
页码:231 / 247
页数:17
相关论文
共 52 条
[11]  
Eliel E.L., 1994, STEREOCHEMISTRY ORGA, P1119
[12]  
FISCHER D, 2000, THESIS BRAUNSCHWEIG
[13]  
HANEL R, 1995, THESIS BRAUNSCHWEIG
[14]  
HANN MM, 1988, J CHEM RES MINIPRINT
[15]  
Harada N., 1983, CIRCULAR DICHROIC SP
[16]   NUCLEAR MAGNETIC-RESONANCE STUDIES OF 1,3-BUTADIENES .9. H-1 SPECTRA OF ISOPRENE AND RELATED COMPOUNDS [J].
HARRIS, RK ;
CUNLIFFE, AV .
ORGANIC MAGNETIC RESONANCE, 1977, 9 (08) :483-488
[17]   PROTON MAGNETIC RESONANCE STUDIES OF BUTADIENE-1,3 + SOME OF ITS DERIVATIVES [J].
HOBGOOD, RT ;
GOLDSTEIN, JH .
JOURNAL OF MOLECULAR SPECTROSCOPY, 1964, 12 (01) :76-&
[18]   STERICALLY HINDERED DOUBLE-BOND SYSTEMS .2. ON THE PREPARATION OF HIGHLY SUBSTITUTED 1,3-DIENES [J].
HOPF, H ;
LIPKA, H .
CHEMISCHE BERICHTE, 1991, 124 (09) :2075-2084
[19]   HIGHLY SUBSTITUTED DIENES - ORTHOGONALITY AND CHEMICAL-REACTIVITY [J].
HOPF, H ;
HANEL, R .
NACHRICHTEN AUS CHEMIE TECHNIK UND LABORATORIUM, 1994, 42 (09) :856-&
[20]  
HOPF H, 1994, ANGEW CHEM INT EDIT, V33, P1369, DOI 10.1002/anie.199413691