Cis-trans-conversion of the bicycle in pyrrolizidines: The effect of the preferred conformations on the properties of the bases and the thermodynamics of conformational transformation of the ring fusion type. (Review)

I. M. Skvortsov

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Cis-trans-conversion of the bicycle in pyrrolizidines: The effect of the preferred conformations on the properties of the bases and the thermodynamics of conformational transformation of the ring fusion type. (Review)

机译：自行车在吡咯嗪核苷中的顺式转化：首选构象对碱基性质的影响以及环融合型构象转化的热力学。（评论）

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The cis-trans conversion in pyrrolizidines and the deciding effect of steric factors on their conformational equilibrium are discussed. Work on the synthesis and characteristics of sterically strained pyrrolizidines is analyzed and discussed. It is shown that such compounds (predominantly trans-fused) have a series of features in their properties that greatly distinguish them from unstrained pyrrolizidines. The first results from study of the thermodynamics of cis-trans conversion of the pyrrolizidine bicycle are summarized.

机译：讨论了吡咯嗪核苷的顺式转化和空间因素对其构象平衡的决定作用。分析和讨论了有关空间应变的吡咯烷核苷的合成和特性的工作。已经表明，这类化合物（主要是转熔的）在其性质上具有一系列特征，这些特征极大地将它们与未应变的吡咯并核苷区分开。总结了吡咯并立环自行车顺式-反式转化热力学研究的第一个结果。

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来源
《Chemistry of heterocyclic compounds》 |2006年第10期|共20页
作者
I. M. Skvortsov;
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原文格式 PDF
正文语种 eng
中图分类杂环化合物;
关键词
conformers; pyrrolizidines; trans-fused pyrrolizidines; cis-trans conversion; thermodynamics;

机译：构象异构体;吡咯并立核苷;反式融合的吡咯并立核苷;顺反转化;热力学;

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1. Cis-trans-conversion of the bicycle in pyrrolizidines: The effect of the preferred conformations on the properties of the bases and the thermodynamics of conformational transformation of the ring fusion type. (Review) [J] . I. M. Skvortsov Chemistry of heterocyclic compounds . 2006,第10期

机译：自行车在吡咯嗪核苷中的顺式转化：首选构象对碱基性质的影响以及环融合型构象转化的热力学。（评论）
2. Large-ring cyclodextrins. Further support for the preferred conformations of CD26 in water solution: Molecular dynamics studies on CD26-derived conformations of CDn (n=24, 25, 27, 28, 29, 30) [J] . Gotsev MG, Ivanov PM International Journal of Quantum Chemistry . 2007,第8期

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3. Controlling conformations and physical properties of meso-tetrakis(phenylethynyl)porphyrins by ring fusion: synthesis, properties and structural characterizations [J] . Shen Z, Uno H, Shimizu Y, Organic & biomolecular chemistry . 2004,第23期

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机译：用于熔融反应器应用的钒基合金的技术评估第2卷。性能评估：钒和钒基合金

Cis-trans-conversion of the bicycle in pyrrolizidines: The effect of the preferred conformations on the properties of the bases and the thermodynamics of conformational transformation of the ring fusion type. (Review)

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