A Directly Writable Photochromic Bisthienylethene

Chang, Hyeri; Lee, Jong Pil; Kim, Jong Man

doi:10.1002/bkcs.10991

Cited by 3 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The reaction of styrene and NOBF 4 in pyridine afforded 4‐nitro‐substituted furoxan 8 , as a single regioisomer, instead of the expected 4‐phenylfuroxan ( 9A ) (Scheme , equation 1) . The reactions of monosubstituted alkenes (terminal alkenes) and NaNO 2 in an acidic media are reported to afford 4‐nitro‐substituted furoxans similarly, whose reaction mechanism has yet to be fully understood.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Furoxans (1,2,5‐oxadiazole 2‐oxides) from Styrenes and Nitrosonium Tetrafluoroborate in Non‐Acidic Media and Mechanistic Study

Matsubara

Andõ

Saeki

et al. 2015

Journal of Heterocyclic Chem

View full text Add to dashboard Cite

Diverse furoxans (1,2,5‐oxadiazole 2‐oxides) were synthesized from the corresponding styrenes using nitrosonium tetrafluoroborate as the nitrosation reagent in pyridine (basic media) or dichloromethane (neutral media). Acid‐sensitive functional groups were tolerated under these conditions. The probable reaction mechanism was elucidated. The experimental results support an ionic reaction pathway in contrast to the conventional acidic conditions with a radical mechanism.

show abstract

Section: Resultsmentioning

confidence: 99%

Synthesis of Furoxans (1,2,5‐oxadiazole 2‐oxides) from Styrenes and Nitrosonium Tetrafluoroborate in Non‐Acidic Media and Mechanistic Study

Matsubara

Andõ

Saeki

et al. 2015

Journal of Heterocyclic Chem

View full text Add to dashboard Cite

show abstract

“…2005 年, Jhung 等 [99] 报道了 Cr-MIL-100 的微波辅助合成. 随后的研究中发现, 微波辅助合成 MIL 系列材料的粒径均处于纳米级别, 且随着反应时间的增加, 产物尺寸更为均匀.…”

Section: 超声合成unclassified

Research Progress of Synthesis Methods for Crystalline Porous Materials

Chen¹,

Zhang²,

Wang³

2023

Acta Chimica Sinica

View full text Add to dashboard Cite

Crystalline porous materials are a class of functional materials with high porosity, diverse structures, and controllable functions, which have broad application prospects in the adsorption and separation of guest molecules, catalysis, energy storage, and many other fields. Among these, zeolites, metal-organic frameworks (MOFs), and covalent organic frameworks (COFs) are most representative ones. With the continuous deepening research on porous materials, many novel synthesis methods have been explored for the basic research of materials. The development of crystalline porous materials synthesis methodologies is also related to their industrial applications. This review mainly focuses on the various synthesis methods for crystalline porous materials, and provides an overview of the synthesis methods of crystalline porous materials. Keywords crystalline porous material; zeolites; metal-organic frameworks; covalent organic frameworks; synthesis methodology 1 引言多孔材料由于其规则的孔道结构及高比表面积已经被广泛研究, 并有望应用于客体分子(气体、金属离子、染料分子等)吸附及分离、催化、储能、光电、传感及生物医药等众多领域 [1][2][3][4][5][6][7] . 根据工业应用中的实际需求, 具有高孔隙率、固有孔道的新型晶态多孔材料成为了化学和材料领域内研究工作者的研究热点, 主要包括纯无机的沸石分子筛(zeolites) [8][9][10][11][12] 及含有机组分的金属有机框架材料(metal-organic frameworks, MOFs) [13][14][15][16][17][18] 、共价有机框架材料(covalent-organic frameworks, COFs)、氢键有机框架材料 (hydrogen-bonded organic frameworks, HOFs) [19][20][21] 等. 近二十年, 随着晶态多孔材料跨学科研究的不断拓展, 其合成方法学也不断地发展, 取得了一系列重要进展 [22][23][24][25][26][27][28] . 目前, 科研人员对材料合成方法学进行深入研究的主要目的为: (1)对材料合成(产量、粒径及形态等)的影响; (2)合成具有新结构的材料;(3)材料的改性(缺陷、孔径调控等); (4)低廉、高效、绿色合成方法学的研究及应用; (5)可规模化量产的合成方法学研究. 其中, 沸石分子筛、 MOFs 和 COFs 材料主要通过将前驱体置于反应容器中使用辅助手段结晶制备, 通常需要外加能量促进结晶过程 [22,[29][30] . 而 HOFs 材料主要通过溶剂挥发、不良溶剂扩散至良溶剂及饱和溶液降温等重结晶过程制备, 反应条件温和, 大部分反应在室温下进行, 不需要使用辅助手段即可实现结晶过

show abstract