The structure of bicyclic ferrocenylmethylene substituted 2-pyrazolines and their reactions with azodicarboxylic acid N-phenylimide

被引：57

作者：

Klimova, EI

García, MM

Berestneva, TK

Toledano, CA

Toskano, RA

Ramírez, LR

机构：

[1] Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1999年 / 585卷 / 01期

关键词：

4+2]-cycloaddition; diastereomeric selectivity; ferrocene; induction; molecular structure; monoene addition; pyrazoline; S-cis-Hetero-1,3-dienes; X-ray structural analysis;

D O I：

10.1016/S0022-328X(99)00202-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Asymmetrical induction in the synthesis of bicyclic pyrazolines with a ferrocenyl substituent has been studied. A relatively high diastereomeric selectivity in the 'chiral-center-by-a-chiral-center' induction of the 1,2-type has been observed. Molecular geometry of a cis-diastereomer of 1-acetyl-9-ferrocenyl-4-ferrocenylmethylene-1,2-diazabicyclo[4.3.0]non-2-ene has been established. Bicyclic 2-pyrazolines having conjugated ferrocenylmethylene fragments interact with azodicarboxylic acid N-phenylimide to form diene and monoene adducts. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：106 / 114

页数：9

共 16 条

[1] STEREOSELECTIVE SYNTHESES .8. ABSOLUTE CONFIGURATION OF A 1,2-DISUBSTITUTED FERROCENE DERIVATIVE WITH PLANAR AND CENTRAL ELEMENTS OF CHIRALITY AND MECHANISM OF STEREOSELECTIVE METALATIONS OF OPTICALLY-ACTIVE ALPHA-FERROCENYL TERTIARY-AMINES [J].