奇拉性诱导和柱体记忆[4]arene[1]可见光范围中的农衍生物
Renlan Huang1, Xueqin Wei2, Pinyou Wang1
1Key Laboratory of Green Chemistry & Technology, College of Chemistry, Laboratory of Precision Cancer Therapeutics, Precision Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610064, China.
Organic letters
|February 14, 2024
概括
新的柱状基衍生物 (PQs) 显示出独特的电荷转移特性,并使性诱导成为可能. 这些PQ为开发先进的体感应和记忆应用提供了一个有前途的战略.
科学领域:
- 超分子化学 超分子化学
- 有机化学 有机化学
- 石眼材料 石眼材料 石眼材料
背景情况:
- 柱状基衍生物 (PQs) 通过柱状[5]的氧化来合成.
- 这些化合物在485 nm左右表现出显著的电荷转移 (CT) 过渡.
研究的目的:
- 为了合成和表征新型柱状基衍生物.
- 为了研究它们的手术性质和手术感知和记忆的潜力.
主要方法:
- 支柱[5]的氧化形成PQ衍生物.
- 化分辨率的反体对应物.
- 复杂化与 chiral 和 achiral 客人用于手术诱导和稳定性研究.
主要成果:
- 成功合成了具有显著CT转换的PQ衍生物.
- 实现了两对反体对应体的奇拉分辨率.
- 已证明可见光手术诱导具有高不对称因素.
- 与母化合物相比,显示较慢的种族化动力学.
- 通过竞争性结合保持诱导的反体过量.
结论:
- PQ衍生物在可见光手术诱导中是有效的.
- 诱导性性质的稳定性可以通过客结合来控制.
- 这些发现为体传感和记忆设备提供了一个有前途的战略.
相关概念视频
Prochirality
3.8K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
3.8K
Photochemical Electrocyclic Reactions: Stereochemistry
1.8K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation
1.8K
Chirality at Nitrogen, Phosphorus, and Sulfur
5.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K
Chirality in Nature
13.4K
Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
13.4K
Molecules with Multiple Chiral Centers
11.7K
Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
11.7K
Chirality
24.2K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
24.2K


